# Hear It for Yourself

*Every render of the house adapter's training run — twelve written requests, two seeds each, the untouched model beside the adapter at two settings of its dial (how much of it is mixed in: half, or full) and beside its name tag with no adapter behind it — eighty-four clips, labelled, with the blind sheet unsealed. Each player fetches a listening master: the raw render with one constant gain and nothing else. One of us sat thirty-six blind presentations — twenty-four pairs of the untouched model against the adapter at full strength, and twelve where both sides were the same file — and preferred the untouched model on eleven of the fifteen pairs that could be told apart. This page is where you check that verdict.*

*Published 2026-09-09 (UTC) · A small (human) team and a fleet of AI agents.*

**the short version:** Eighty-four thirty-second clips from one training run — twelve written requests, two seeds each, the untouched model beside the adapter at half and full strength and beside its name tag alone — labelled, with the blind answer sheet unsealed and every answer printed as typed. One of us sat thirty-six presentations without labels — twenty-four pairs and twelve sentinels — and on the pairs: eleven for the untouched model, four for the adapter, nine with no preference, against the eighteen of twenty-four the adapter needed to clear. Every player fetches a listening master with one constant gain and nothing else, and every clip prints three fingerprints — the raw render, the copy the sitting played, and the master the player plays — so you can tell which bytes you are hearing.

7,561 words · about 34 minutes (at 220 words/min) · 12 tables · data kit: no

https://research.strata2signal.com/hear-it-for-yourself/

---

## What you are hearing {#what-you-are-hearing}

Every clip on this page was rendered by ACE-Step 1.5's fast variant at eight steps, from a written request and a fixed seed, thirty seconds each, A minor throughout, with the engine's output normalisation at −1 dB, and copied here byte for byte. The only thing that changes inside a request is the adapter — nothing added, the adapter at half strength, the adapter at full strength, or the adapter's name tag with no adapter loaded behind it — and every request that carries the adapter, and the name-tag control too, puts `house-wide, ` at the front and changes nothing else; the untouched requests carry no prefix at all.

Under each player, two things: which of the four made the clip, and two fingerprints — the first sixteen characters of the raw render's sha256, then the listening master's — and the master is the file the player fetches. Beneath each request's players, one row per clip carries the rest: the integrated loudness in LUFS (the broadcast unit; it runs negative, 0 is the most a file can hold, and a change of one is about a third of a notch on a fader), the true peak in dBTP — the highest point the waveform actually reaches, and the thing a level change can push through the ceiling. Then the loudness range, a third fingerprint for the copy the blind sitting played, the gain in dB the master applied and whether that brought it to the common level, and how long the render took. The article explains what the run was for; this page only plays it.

Every clip here is AI-generated. The forty-eight clips the adapter made come from a model trained on Creative Commons music whose strictest licence is share-alike, so Attribution-ShareAlike travels with them and with anything you make from one — the corpus, four hundred and sixteen tracks of which three hundred and thirty-one trained, is credited track by track and licence by licence on the article's page. The thirty-six clips the adapter never touched are the engine's own output.

## How to listen {#how-to-listen}

Play two clips from the same request one after the other without touching the volume — they have already been brought to a common level — and play each of them twice. Thirty seconds is short. If you cannot tell them apart, that is an answer, and it was the commonest one in the sitting: on nine of twenty-four pairs our listener heard no difference worth naming. There is no wrong thing to notice.

Three things worth listening for, in the order the article found them. First, whether the adapter's clip has a floor — a kick and a bass that hold the room — or has lost it; the two clips our listener singled out as sounding most like house were both from the untouched model, and they are named below. Second, beat presence: two of the four pairs the adapter won, it won on something arriving on the grid that otherwise did not arrive — “actually has a hat at the start where B is void of one”; “A actually has a 4-4 beat to start, whereas B has none” (a hat is a hi-hat, the metallic tick between the kicks) — which is not the layer an adapter of this kind is built to reach, so it is flagged rather than buried. Third, the name-tag clips: those carry the adapter's trigger word with no adapter behind it, so anything you hear in them belongs to the word and not to the weights.

And a fourth, which is the article's closing argument and is easier to hear than to read: play any three clips from one request in a row and ask not how they sound but how they are built — where the sections change, whether anything arrives or leaves, whether it goes anywhere. That is the layer our listener said was wrong, mid-sitting and before any key was opened, and it is not the layer an adapter of this kind can reach.

## The blind sheet, unsealed {#the-blind-sheet-unsealed}

The sitting was thirty-six presentations: **twenty-four scoring pairs** — the same request at the same seed, once by the untouched model and once with the adapter at full strength, order randomised per trial from a seed fixed before the sheet existed, labels neutral, file names neutral — and **twelve sentinels**. A sentinel plays the identical file on both sides: same bytes, same fingerprint, presented as A and B. The sheet offered no "no preference" button, on the reasoning that an honest listener is a fair coin on those, and the acceptance band was set on that assumption at two to ten directional answers of twelve. Our listener abstained anyway, on eleven of the twelve. The sentinels here were drawn from the name-tag clips, one per request, always at the primary seed.

Eleven of the twelve were heard as identical. **One was not.** On trial 27 — the deep house request, the same file on both sides — our listener wrote “similar, but B sounds slightly cleaner / tighter on the beats”. One directional answer is below the registered band of two, so on the band as written the sentinel block does not accept; the article says what that costs, and what the eleven are worth. Here it is something you can try: every request below names its sentinel, so play a name-tag clip against itself, knowing it is the same file, and notice what your ear offers you anyway.

On the twenty-four real pairs: eleven for the untouched model, four for the adapter, nine with no preference, against the eighteen the adapter needed. Each request below carries its two trials, what our listener wrote — exactly as typed, before the key was opened — and which side was actually the adapter, which nobody knew at the time.

**If you only play four things, play the four requests that asked for house** — deep house, tech house, disco house, progressive house; P07 to P10 below. Our listener expressed a preference on five of their eight pairs and chose the untouched model every time, which is the observation the article turns on. In each one, play **nothing added** against **the adapter at full strength** at the same seed and see whether you agree. The two clips our listener called the most house-like are P08 at seed 4008 (“A is way better, actually resembles house”) and P02 at seed 5002 (“A sounds better, sounds more like house type music (cleaner)”) — both from the untouched model.

Two of the four things you can play here were never in the sitting. The registered sheet also carried a descriptive block pairing the untouched model against the adapter at half strength, and a first null pairing it against the name tag alone; neither was presented — the twelve name-tag renders were spent as sentinels instead, and the twenty-four half-strength renders were never put in front of anyone. They are on this page because they were rendered and measured — the half-strength set is what the article's dose-response check ran on — and because the dial's midpoint is worth hearing. No answer of our listener's attaches to either.

## The twelve requests {#the-twelve-requests}

Twelve requests, in the order the run numbered them: six techno, four house, one breaks, one trance — the same twelve the previous adapter was judged on, kept so the two runs can be compared. Each request prints exactly as it was sent in the untouched arm; the tempo in the heading is the run's design pin for that request, not a word in the request. The two adapter settings and the name-tag control prepend `house-wide, ` and change nothing else. Within a request the primary seed's four clips come first, then the second seed's three — the name tag was rendered at the primary seed only, which is why twelve requests make eighty-four clips and not ninety-six — and in each seed the pair the sitting judged comes first: **nothing added**, then **the adapter at full strength**. The sheet's answers for a request sit under its table, so you can listen first.

## P01 — minimal techno, 128 BPM {#p01-minimal-techno-128-bpm}

> minimal techno, hypnotic rolling groove, analog drum machine, deep sub bass, sparse percussion, late night

> 🔊 **P01 · seed 4001 · nothing added** · raw render `6f29ead374328e04` · listening master `bc9f8a7e126f4704`
>
> 🔊 **P01 · seed 4001 · the adapter at full strength** · raw render `cc16fe5cb0f70582` · listening master `0234da9f4a633935`
>
> 🔊 **P01 · seed 4001 · the adapter at 0.5** · raw render `67cfb19be8ac48a7` · listening master `da4848518da8f650`
>
> 🔊 **P01 · seed 4001 · the name tag alone, no adapter** · raw render `ec4cff68e3db5cc5` · listening master `2581f981a6000f5e`
>
> 🔊 **P01 · seed 5001 · nothing added** · raw render `a19e6a17c52561f0` · listening master `cf186ec980fcb0e6`
>
> 🔊 **P01 · seed 5001 · the adapter at full strength** · raw render `43966dd56b1261e0` · listening master `65e3182c04e30da8`
>
> 🔊 **P01 · seed 5001 · the adapter at 0.5** · raw render `64bc35d672ffb427` · listening master `9660c249528c50de`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P01__base__seed4001` | −18.29 | −1.00 | 6.9 | `6f29ead374328e04` | `154099caef3e7751` | +0.00 | no | 10.3 s |
| `P01__house-1.0__seed4001` | −16.17 | −0.85 | 2.2 | `cc16fe5cb0f70582` | `88837c1c3a5b615a` | −0.15 | no | 9.4 s |
| `P01__house-0.5__seed4001` | −16.70 | −0.82 | 2.4 | `67cfb19be8ac48a7` | `56075512dc6e681f` | −0.18 | no | 9.4 s |
| `P01__trigger-only__seed4001` | −16.95 | −0.71 | 5.0 | `ec4cff68e3db5cc5` | `25fe11b5794cf1df` | −0.29 | no | 10.3 s |
| `P01__base__seed5001` | −13.97 | −0.91 | 11.5 | `a19e6a17c52561f0` | `18556febcc0c084f` | −2.03 | yes | 10.3 s |
| `P01__house-1.0__seed5001` | −13.76 | −0.90 | 7.7 | `43966dd56b1261e0` | `c87d875ab5d68b0a` | −2.24 | yes | 9.4 s |
| `P01__house-0.5__seed5001` | −13.56 | −0.98 | 9.6 | `64bc35d672ffb427` | `cd23935a1bd2fad0` | −2.44 | yes | 9.4 s |

**The sheet.** **Trial 26** (seed 4001) — no preference; our listener wrote: “too similar (both 25 and 26 are really bad compositions, and have a lot of "glitchy" sounds that are weird)”. **Trial 24** (seed 5001) — our listener picked side A, which was **nothing added**, and wrote: “A sounds a bit better, tighter / cleaner beats”. **Trial 25** was this request's sentinel — the name-tag clip at seed 4001 against itself; our listener wrote: “too similar”.

## P02 — dub techno, 122 BPM {#p02-dub-techno-122-bpm}

> dub techno, deep chord stabs drenched in delay, soft muffled kick, tape hiss, slow underwater swing

> 🔊 **P02 · seed 4002 · nothing added** · raw render `40f73c1b0e939699` · listening master `8c11b9c116769b2e`
>
> 🔊 **P02 · seed 4002 · the adapter at full strength** · raw render `4a8a786ea2b4b553` · listening master `2cd2dda68da9a2b8`
>
> 🔊 **P02 · seed 4002 · the adapter at 0.5** · raw render `33621778e37a3d89` · listening master `52880f7abda707a9`
>
> 🔊 **P02 · seed 4002 · the name tag alone, no adapter** · raw render `473616e224f218a9` · listening master `6b2d5724b85aaa5d`
>
> 🔊 **P02 · seed 5002 · nothing added** · raw render `d333a28f716c5a2f` · listening master `434fb10cacf8b443`
>
> 🔊 **P02 · seed 5002 · the adapter at full strength** · raw render `41d0ff4795c3bffd` · listening master `835347bdbb6147d1`
>
> 🔊 **P02 · seed 5002 · the adapter at 0.5** · raw render `14db27910168ffd6` · listening master `3d89bf8010c08d75`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P02__base__seed4002` | −16.06 | −1.00 | 6.0 | `40f73c1b0e939699` | `da512ba894e16e11` | +0.00 | no | 10.3 s |
| `P02__house-1.0__seed4002` | −16.35 | −1.00 | 8.6 | `4a8a786ea2b4b553` | `62268553bff852d7` | +0.00 | no | 9.6 s |
| `P02__house-0.5__seed4002` | −15.60 | −1.00 | 9.9 | `33621778e37a3d89` | `b6d36151a88b5521` | −0.40 | yes | 9.4 s |
| `P02__trigger-only__seed4002` | −15.69 | −1.00 | 3.7 | `473616e224f218a9` | `71d01b5042c2cd0b` | −0.31 | yes | 10.3 s |
| `P02__base__seed5002` | −14.54 | −0.82 | 6.4 | `d333a28f716c5a2f` | `ad984377139e787c` | −1.46 | yes | 10.3 s |
| `P02__house-1.0__seed5002` | −14.08 | −0.94 | 5.1 | `41d0ff4795c3bffd` | `89447c2807ca5906` | −1.92 | yes | 9.4 s |
| `P02__house-0.5__seed5002` | −15.54 | −0.99 | 4.4 | `14db27910168ffd6` | `9b66d6fa0b388a51` | −0.46 | yes | 9.4 s |

**The sheet.** **Trial 32** (seed 4002) — our listener picked side A, which was **the adapter at full strength**, and wrote: “A def better, actually has a hat at the start where B is void of one”. **Trial 19** (seed 5002) — our listener picked side A, which was **nothing added**, and wrote: “A sounds better, sounds more like house type music (cleaner)”. **Trial 5** was this request's sentinel — the name-tag clip at seed 4002 against itself; our listener wrote: “too similar”.

## P03 — Detroit techno, 132 BPM {#p03-detroit-techno-132-bpm}

> detroit techno, soaring string pads, crisp 909 drums, warm bassline, futuristic and soulful

> 🔊 **P03 · seed 4003 · nothing added** · raw render `729a04f6dbdd01ed` · listening master `ac447ff4c16b8544`
>
> 🔊 **P03 · seed 4003 · the adapter at full strength** · raw render `960c41da96bade5e` · listening master `1994d08921b06fff`
>
> 🔊 **P03 · seed 4003 · the adapter at 0.5** · raw render `30475307ce10caa6` · listening master `779d40791ccadd72`
>
> 🔊 **P03 · seed 4003 · the name tag alone, no adapter** · raw render `4fe0adec9b44b76d` · listening master `63de7167c0f88e7a`
>
> 🔊 **P03 · seed 5003 · nothing added** · raw render `862d48e18db8c561` · listening master `df430b19268198b5`
>
> 🔊 **P03 · seed 5003 · the adapter at full strength** · raw render `1fb6105e5d4586e9` · listening master `d2ed36c10da27b57`
>
> 🔊 **P03 · seed 5003 · the adapter at 0.5** · raw render `cfa01a36f49dc691` · listening master `117fbb86c28a011b`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P03__base__seed4003` | −13.80 | −0.95 | 7.5 | `729a04f6dbdd01ed` | `482b0ce44b20eb83` | −2.20 | yes | 10.3 s |
| `P03__house-1.0__seed4003` | −13.92 | −0.94 | 8.1 | `960c41da96bade5e` | `deb8ce3742c560ca` | −2.08 | yes | 9.4 s |
| `P03__house-0.5__seed4003` | −14.15 | −0.97 | 6.5 | `30475307ce10caa6` | `c6b97d32d6969b07` | −1.85 | yes | 9.4 s |
| `P03__trigger-only__seed4003` | −14.03 | −0.96 | 5.6 | `4fe0adec9b44b76d` | `ec9080901b4e8a85` | −1.97 | yes | 10.3 s |
| `P03__base__seed5003` | −19.11 | −0.63 | 2.4 | `862d48e18db8c561` | `7bf26c71267ed765` | −0.37 | no | 10.3 s |
| `P03__house-1.0__seed5003` | −19.25 | −0.81 | 2.5 | `1fb6105e5d4586e9` | `7f2e0670f7fe13e1` | −0.19 | no | 9.4 s |
| `P03__house-0.5__seed5003` | −19.39 | −0.70 | 1.6 | `cfa01a36f49dc691` | `acf92438b51bab6d` | −0.30 | no | 9.4 s |

**The sheet.** **Trial 20** (seed 4003) — no preference; our listener wrote: “A has a much more pronounced background synth/melody type sound, but i don't have a pref”. **Trial 10** (seed 5003) — our listener picked side B, which was **the adapter at full strength**, and wrote: “B sounds better, A has more background kind of "wonky talk" type ambient sound, which i notice on a lot of ace tracks actually”. **Trial 18** was this request's sentinel — the name-tag clip at seed 4003 against itself; our listener wrote: “too similar to tell apart”.

## P04 — melodic techno, 124 BPM {#p04-melodic-techno-124-bpm}

> melodic techno, driving arpeggiated synth, big reverb, emotive chord progression, steady four on the floor

> 🔊 **P04 · seed 4004 · nothing added** · raw render `33da5224dba96bfb` · listening master `6a3dcce14de72c8a`
>
> 🔊 **P04 · seed 4004 · the adapter at full strength** · raw render `cccf825cf188d828` · listening master `a22382ce520fff81`
>
> 🔊 **P04 · seed 4004 · the adapter at 0.5** · raw render `1c24a873e536604d` · listening master `3927eaae9e1894d2`
>
> 🔊 **P04 · seed 4004 · the name tag alone, no adapter** · raw render `fcda5bcd8d5d920c` · listening master `18a21f2a7b6b6ba8`
>
> 🔊 **P04 · seed 5004 · nothing added** · raw render `ec1c9e43f5d17d03` · listening master `9868b91b3c2c171d`
>
> 🔊 **P04 · seed 5004 · the adapter at full strength** · raw render `029b6f7f99242d2d` · listening master `b74a7f6d558bc121`
>
> 🔊 **P04 · seed 5004 · the adapter at 0.5** · raw render `dd66991c3608bb7a` · listening master `b83c97c5668cecb7`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P04__base__seed4004` | −18.29 | −0.88 | 6.4 | `33da5224dba96bfb` | `6e94842dd7df318d` | −0.12 | no | 10.3 s |
| `P04__house-1.0__seed4004` | −17.31 | −1.00 | 5.2 | `cccf825cf188d828` | `3e50b4f4194f8355` | +0.00 | no | 9.4 s |
| `P04__house-0.5__seed4004` | −18.09 | −1.00 | 5.4 | `1c24a873e536604d` | `553fd6a250568453` | +0.00 | no | 9.4 s |
| `P04__trigger-only__seed4004` | −18.77 | −0.90 | 6.2 | `fcda5bcd8d5d920c` | `6244fc4be50231f6` | −0.10 | no | 10.3 s |
| `P04__base__seed5004` | −16.79 | −0.87 | 5.2 | `ec1c9e43f5d17d03` | `aa8687c7524842a9` | −0.13 | no | 10.3 s |
| `P04__house-1.0__seed5004` | −14.40 | −1.00 | 4.2 | `029b6f7f99242d2d` | `d6425bbbdbf90a41` | −1.60 | yes | 9.4 s |
| `P04__house-0.5__seed5004` | −15.61 | −0.99 | 7.0 | `dd66991c3608bb7a` | `744ac136a98963aa` | −0.39 | yes | 9.4 s |

**The sheet.** **Trial 33** (seed 4004) — no preference; our listener wrote: “too similar”. **Trial 16** (seed 5004) — no preference; our listener wrote: “they sound quite a bit different, but i don't have a pref; in A, the piano is much more pronounced”. **Trial 2** was this request's sentinel — the name-tag clip at seed 4004 against itself; our listener wrote: “too similar”.

## P05 — hard techno, 145 BPM {#p05-hard-techno-145-bpm}

> hard techno, distorted rumbling kick, industrial percussion, relentless, dark warehouse

> 🔊 **P05 · seed 4005 · nothing added** · raw render `19a21339c58ba55c` · listening master `c3bdf1bcb7ef6d7f`
>
> 🔊 **P05 · seed 4005 · the adapter at full strength** · raw render `4ff46e7427abc904` · listening master `7a6e8c2fb530d940`
>
> 🔊 **P05 · seed 4005 · the adapter at 0.5** · raw render `642efb728f73e055` · listening master `95c1d82b1bfbaa26`
>
> 🔊 **P05 · seed 4005 · the name tag alone, no adapter** · raw render `ce3614c835bfb945` · listening master `d4fc724350028b00`
>
> 🔊 **P05 · seed 5005 · nothing added** · raw render `025057c1b8cec752` · listening master `f8a67bec846a5d40`
>
> 🔊 **P05 · seed 5005 · the adapter at full strength** · raw render `0b6df192333fb524` · listening master `d09442284ee61c09`
>
> 🔊 **P05 · seed 5005 · the adapter at 0.5** · raw render `7e0dca44d7baa403` · listening master `529694630e92b16e`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P05__base__seed4005` | −17.51 | −0.99 | 6.5 | `19a21339c58ba55c` | `68cbf63185a1758d` | −0.01 | no | 10.3 s |
| `P05__house-1.0__seed4005` | −16.02 | −1.00 | 4.7 | `4ff46e7427abc904` | `d28b223c026f35b3` | +0.00 | no | 9.5 s |
| `P05__house-0.5__seed4005` | −14.77 | −0.99 | 4.4 | `642efb728f73e055` | `b9401729c87c1512` | −1.23 | yes | 9.4 s |
| `P05__trigger-only__seed4005` | −15.50 | −0.99 | 5.4 | `ce3614c835bfb945` | `1a985d005466bee8` | −0.50 | yes | 10.3 s |
| `P05__base__seed5005` | −16.97 | −0.99 | 7.5 | `025057c1b8cec752` | `c2916fa3ab7fc9d4` | −0.01 | no | 10.3 s |
| `P05__house-1.0__seed5005` | −17.31 | −1.00 | 4.8 | `0b6df192333fb524` | `2072bcbca67a8200` | +0.00 | no | 9.4 s |
| `P05__house-0.5__seed5005` | −18.28 | −0.99 | 6.0 | `7e0dca44d7baa403` | `e8ee9c19d3a99513` | −0.01 | no | 9.4 s |

**The sheet.** **Trial 29** (seed 4005) — no preference; our listener wrote: “too similar”. **Trial 21** (seed 5005) — no preference; our listener wrote: “too similar”. **Trial 22** was this request's sentinel — the name-tag clip at seed 4005 against itself; our listener wrote: “too similar”.

## P06 — acid techno, 130 BPM {#p06-acid-techno-130-bpm}

> acid techno, squelching 303 bassline, resonant filter sweeps, tight drum machine, raw and hypnotic

> 🔊 **P06 · seed 4006 · nothing added** · raw render `f2184d9283300c0d` · listening master `5e7eb7366dea7328`
>
> 🔊 **P06 · seed 4006 · the adapter at full strength** · raw render `9bd54e01e07ba37d` · listening master `4a74c473e52e57f1`
>
> 🔊 **P06 · seed 4006 · the adapter at 0.5** · raw render `420a71a83a50f70f` · listening master `e409ef551076d43c`
>
> 🔊 **P06 · seed 4006 · the name tag alone, no adapter** · raw render `2caa3f6020c5679f` · listening master `86a3975ec97478a9`
>
> 🔊 **P06 · seed 5006 · nothing added** · raw render `042daa2491e56e39` · listening master `974e94c55736b565`
>
> 🔊 **P06 · seed 5006 · the adapter at full strength** · raw render `128e76f5a3a198b8` · listening master `cc07db77df3fd98d`
>
> 🔊 **P06 · seed 5006 · the adapter at 0.5** · raw render `1590a7a0c1e28f33` · listening master `7b231813cfa89fa9`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P06__base__seed4006` | −15.26 | −0.90 | 9.3 | `f2184d9283300c0d` | `75ce1e883abb3c44` | −0.74 | yes | 10.3 s |
| `P06__house-1.0__seed4006` | −16.39 | −1.00 | 4.1 | `9bd54e01e07ba37d` | `d419b4315e97ff61` | +0.00 | no | 9.4 s |
| `P06__house-0.5__seed4006` | −14.99 | −1.00 | 4.3 | `420a71a83a50f70f` | `728757ae384573eb` | −1.01 | yes | 9.5 s |
| `P06__trigger-only__seed4006` | −14.87 | −1.00 | 6.7 | `2caa3f6020c5679f` | `da732c9ecbb27dc9` | −1.13 | yes | 10.3 s |
| `P06__base__seed5006` | −15.50 | −0.95 | 8.7 | `042daa2491e56e39` | `18acaa3c039798f9` | −0.50 | yes | 10.3 s |
| `P06__house-1.0__seed5006` | −14.78 | −0.96 | 3.0 | `128e76f5a3a198b8` | `f65bacdaaf7bd140` | −1.22 | yes | 9.5 s |
| `P06__house-0.5__seed5006` | −14.42 | −0.98 | 3.9 | `1590a7a0c1e28f33` | `1e26661c1ef1db48` | −1.58 | yes | 9.4 s |

**The sheet.** **Trial 8** (seed 4006) — our listener picked side B, which was **nothing added**, and wrote: “B is better”. **Trial 6** (seed 5006) — our listener picked side A, which was **the adapter at full strength**, and wrote: “A is better”. **Trial 34** was this request's sentinel — the name-tag clip at seed 4006 against itself; our listener wrote: “too similar”.

## P07 — deep house, 122 BPM {#p07-deep-house-122-bpm}

> deep house, warm rhodes chords, shuffled hi-hats, smooth sub bass, soulful and laid back

> 🔊 **P07 · seed 4007 · nothing added** · raw render `eab731443610023d` · listening master `9a5515855790756e`
>
> 🔊 **P07 · seed 4007 · the adapter at full strength** · raw render `0dff7a97c0b03a93` · listening master `77aa527a0222cf7b`
>
> 🔊 **P07 · seed 4007 · the adapter at 0.5** · raw render `6c0ede64d4b5ebca` · listening master `d2e993ea25fca786`
>
> 🔊 **P07 · seed 4007 · the name tag alone, no adapter** · raw render `3e76e0507abe5aed` · listening master `8f5ca8c26a3a766a`
>
> 🔊 **P07 · seed 5007 · nothing added** · raw render `e9bfa5ca2dba4f8b` · listening master `ca6f214ad202c753`
>
> 🔊 **P07 · seed 5007 · the adapter at full strength** · raw render `8a525bceac2f86ed` · listening master `7e7b74c25a3dc97a`
>
> 🔊 **P07 · seed 5007 · the adapter at 0.5** · raw render `d8b9c60ec89c2588` · listening master `24c5e35563837319`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P07__base__seed4007` | −15.03 | −1.00 | 3.2 | `eab731443610023d` | `eb21d2b4a8769d14` | −0.97 | yes | 10.3 s |
| `P07__house-1.0__seed4007` | −14.28 | −0.95 | 2.7 | `0dff7a97c0b03a93` | `80f9794969d9fbff` | −1.72 | yes | 9.4 s |
| `P07__house-0.5__seed4007` | −14.91 | −0.86 | 3.1 | `6c0ede64d4b5ebca` | `5bfa8c39a9f60a30` | −1.09 | yes | 9.4 s |
| `P07__trigger-only__seed4007` | −14.71 | −0.84 | 2.8 | `3e76e0507abe5aed` | `cfc723b6070105f4` | −1.29 | yes | 10.3 s |
| `P07__base__seed5007` | −15.36 | −0.94 | 4.3 | `e9bfa5ca2dba4f8b` | `0a6e56b5b08fad07` | −0.64 | yes | 10.3 s |
| `P07__house-1.0__seed5007` | −15.43 | −0.91 | 3.3 | `8a525bceac2f86ed` | `0c1eed3f745f1f01` | −0.57 | yes | 9.4 s |
| `P07__house-0.5__seed5007` | −16.38 | −0.79 | 1.9 | `d8b9c60ec89c2588` | `1f2316d5c3559dcf` | −0.21 | no | 9.4 s |

**The sheet.** **Trial 4** (seed 4007) — our listener picked side A, which was **nothing added**, and wrote: “similar, but A is better”. **Trial 13** (seed 5007) — our listener picked side B, which was **nothing added**, and wrote: “B sounds better”. **Trial 27** was this request's sentinel — the name-tag clip at seed 4007 against itself, the identical file, the same fingerprint, both sides — and our listener wrote: “similar, but B sounds slightly cleaner / tighter on the beats”. It is the run's one false positive and it is on the record.

## P08 — tech house, 126 BPM {#p08-tech-house-126-bpm}

> tech house, chunky rolling bassline, tight clap, minimal percussion fills, groovy and punchy

> 🔊 **P08 · seed 4008 · nothing added** · raw render `46492068acc9d4b2` · listening master `cb577e3405defb75`
>
> 🔊 **P08 · seed 4008 · the adapter at full strength** · raw render `d7c9ba5e6bc12f0c` · listening master `fcd90ba41313de0b`
>
> 🔊 **P08 · seed 4008 · the adapter at 0.5** · raw render `360b45a87a00e945` · listening master `dae1535d90c9b297`
>
> 🔊 **P08 · seed 4008 · the name tag alone, no adapter** · raw render `56a8f3ec10da8bdf` · listening master `9282e3f95a0a5b11`
>
> 🔊 **P08 · seed 5008 · nothing added** · raw render `e9bbb374e793756f` · listening master `1268c5c5c8fdd5e9`
>
> 🔊 **P08 · seed 5008 · the adapter at full strength** · raw render `2eae44106ce90d7e` · listening master `74a26bb276a05f00`
>
> 🔊 **P08 · seed 5008 · the adapter at 0.5** · raw render `a1a22acb494e0885` · listening master `2116a13421f22619`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P08__base__seed4008` | −16.46 | −0.98 | 2.1 | `46492068acc9d4b2` | `0dace6c1add6cac2` | −0.02 | no | 10.3 s |
| `P08__house-1.0__seed4008` | −16.88 | −1.00 | 1.0 | `d7c9ba5e6bc12f0c` | `f13f69a0b7926492` | +0.00 | no | 9.4 s |
| `P08__house-0.5__seed4008` | −16.67 | −0.89 | 1.0 | `360b45a87a00e945` | `74b534f38816d3b2` | −0.11 | no | 9.4 s |
| `P08__trigger-only__seed4008` | −17.29 | −1.00 | 1.7 | `56a8f3ec10da8bdf` | `946c547083863087` | +0.00 | no | 10.3 s |
| `P08__base__seed5008` | −16.18 | −0.94 | 1.6 | `e9bbb374e793756f` | `dcc1d9acd9b77328` | −0.06 | no | 10.3 s |
| `P08__house-1.0__seed5008` | −15.42 | −1.00 | 1.0 | `2eae44106ce90d7e` | `ffa9b5905c4918bc` | −0.58 | yes | 9.4 s |
| `P08__house-0.5__seed5008` | −15.25 | −0.91 | 1.1 | `a1a22acb494e0885` | `97c2e1715e4ead7a` | −0.75 | yes | 9.4 s |

**The sheet.** **Trial 7** (seed 4008) — our listener picked side A, which was **nothing added**, and wrote: “A is way better, actually resembles house”. **Trial 9** (seed 5008) — no preference; our listener wrote: “both are kinda a mess”. **Trial 12** was this request's sentinel — the name-tag clip at seed 4008 against itself; our listener wrote: “no pref”.

## P09 — disco house, 124 BPM {#p09-disco-house-124-bpm}

> disco house, filtered disco loop, live strings and brass stabs, funky bass guitar, joyful

> 🔊 **P09 · seed 4009 · nothing added** · raw render `ab34f88b669affc7` · listening master `c5f5d9b7457272f1`
>
> 🔊 **P09 · seed 4009 · the adapter at full strength** · raw render `f799b67a462579a1` · listening master `48edc3c050a26132`
>
> 🔊 **P09 · seed 4009 · the adapter at 0.5** · raw render `2497220a211469c2` · listening master `d4e689d36a0110d9`
>
> 🔊 **P09 · seed 4009 · the name tag alone, no adapter** · raw render `acacde982393fb17` · listening master `745309bf0f131eee`
>
> 🔊 **P09 · seed 5009 · nothing added** · raw render `62709cf9aa113c77` · listening master `d8a7ca1ca7b403fe`
>
> 🔊 **P09 · seed 5009 · the adapter at full strength** · raw render `00fd3a8ac8fae202` · listening master `9b3ed91ced5024d1`
>
> 🔊 **P09 · seed 5009 · the adapter at 0.5** · raw render `debfc97d77ae8923` · listening master `57c92ad13cf6c560`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P09__base__seed4009` | −14.34 | −1.00 | 6.8 | `ab34f88b669affc7` | `3c165224e4dbac4f` | −1.66 | yes | 10.3 s |
| `P09__house-1.0__seed4009` | −14.41 | −1.00 | 5.9 | `f799b67a462579a1` | `70ec4e2d44fde39f` | −1.59 | yes | 9.4 s |
| `P09__house-0.5__seed4009` | −13.99 | −0.93 | 6.0 | `2497220a211469c2` | `c6f4c563ed480aa3` | −2.01 | yes | 9.4 s |
| `P09__trigger-only__seed4009` | −15.72 | −0.65 | 6.0 | `acacde982393fb17` | `d6c973f36b695af5` | −0.35 | no | 10.3 s |
| `P09__base__seed5009` | −18.36 | −0.89 | 2.0 | `62709cf9aa113c77` | `d0c3a50994e178df` | −0.11 | no | 10.3 s |
| `P09__house-1.0__seed5009` | −15.22 | −1.00 | 2.3 | `00fd3a8ac8fae202` | `5c91ac3728c85269` | −0.78 | yes | 9.4 s |
| `P09__house-0.5__seed5009` | −16.37 | −1.00 | 2.6 | `debfc97d77ae8923` | `e7ae9713608dab36` | +0.00 | no | 9.4 s |

**The sheet.** **Trial 30** (seed 4009) — no preference; our listener wrote: “similar (both bad)”. **Trial 15** (seed 5009) — our listener picked side B, which was **nothing added**, and wrote: “B sounds better, crisper overall / hats, etc”. **Trial 23** was this request's sentinel — the name-tag clip at seed 4009 against itself; our listener wrote: “too similar”.

## P10 — progressive house, 128 BPM {#p10-progressive-house-128-bpm}

> progressive house, long atmospheric build, plucked synth melody, sidechained pads, euphoric drop

> 🔊 **P10 · seed 4010 · nothing added** · raw render `658ed42875d2ba1f` · listening master `ff57dc4959b69370`
>
> 🔊 **P10 · seed 4010 · the adapter at full strength** · raw render `50a42118b782d597` · listening master `a4f286467bf5eee3`
>
> 🔊 **P10 · seed 4010 · the adapter at 0.5** · raw render `82276caf4dca50ef` · listening master `d221a59b56b01692`
>
> 🔊 **P10 · seed 4010 · the name tag alone, no adapter** · raw render `d38642de3b98cfff` · listening master `d72630db3e19e72f`
>
> 🔊 **P10 · seed 5010 · nothing added** · raw render `4f7badc5a0b705e6` · listening master `d1369f5e70912a7f`
>
> 🔊 **P10 · seed 5010 · the adapter at full strength** · raw render `b9c326a5d8fc4de8` · listening master `67d5be63d236ef3d`
>
> 🔊 **P10 · seed 5010 · the adapter at 0.5** · raw render `67a05bdedbe67351` · listening master `ce497082cde88549`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P10__base__seed4010` | −13.42 | −1.00 | 3.4 | `658ed42875d2ba1f` | `006a4b6369983bb9` | −2.58 | yes | 10.3 s |
| `P10__house-1.0__seed4010` | −15.33 | −1.00 | 3.6 | `50a42118b782d597` | `c1b2f5850d2e3f65` | −0.67 | yes | 9.5 s |
| `P10__house-0.5__seed4010` | −14.43 | −0.90 | 4.4 | `82276caf4dca50ef` | `94dec6b66d072223` | −1.57 | yes | 9.5 s |
| `P10__trigger-only__seed4010` | −13.06 | −0.87 | 3.5 | `d38642de3b98cfff` | `413453d6117ee214` | −2.94 | yes | 10.3 s |
| `P10__base__seed5010` | −18.37 | −0.55 | 2.6 | `4f7badc5a0b705e6` | `2c5103547a3d557c` | −0.45 | no | 10.3 s |
| `P10__house-1.0__seed5010` | −17.88 | −1.00 | 1.9 | `b9c326a5d8fc4de8` | `b41daaa886b8ef8e` | +0.00 | no | 9.5 s |
| `P10__house-0.5__seed5010` | −19.84 | −1.00 | 1.6 | `67a05bdedbe67351` | `29dc4a151eb4d505` | +0.00 | no | 9.4 s |

**The sheet.** **Trial 31** (seed 4010) — no preference; our listener wrote: “B has more background sort of ambient echo sound, no pref on which i like better”. **Trial 35** (seed 5010) — our listener picked side B, which was **nothing added**, and wrote: “similar, but B sounds slightly cleaner”. **Trial 11** was this request's sentinel — the name-tag clip at seed 4010 against itself; our listener wrote: “too similar / no pref”.

## P11 — electro breaks, 130 BPM {#p11-electro-breaks-130-bpm}

> electro breakbeat, syncopated broken drums, robotic bass synth, vocoder stabs, retro futuristic

> 🔊 **P11 · seed 4011 · nothing added** · raw render `0d2d623638b56f33` · listening master `243742862d1f7d11`
>
> 🔊 **P11 · seed 4011 · the adapter at full strength** · raw render `7033b9e3dc3885ae` · listening master `5e35d2728255dd1a`
>
> 🔊 **P11 · seed 4011 · the adapter at 0.5** · raw render `7562aab5b75b65b1` · listening master `497f45455ab472ac`
>
> 🔊 **P11 · seed 4011 · the name tag alone, no adapter** · raw render `3eb4b2ca269f0ff2` · listening master `9c5cb983b9c9c657`
>
> 🔊 **P11 · seed 5011 · nothing added** · raw render `22515ab8b46a7c92` · listening master `dd96c53f967ce504`
>
> 🔊 **P11 · seed 5011 · the adapter at full strength** · raw render `81ac153d7c837641` · listening master `6060175b5e982ab0`
>
> 🔊 **P11 · seed 5011 · the adapter at 0.5** · raw render `d176654bd9736151` · listening master `549ab5da2f8fc05b`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P11__base__seed4011` | −16.17 | −0.41 | 2.2 | `0d2d623638b56f33` | `43fd265be16ce8f2` | −0.59 | no | 10.3 s |
| `P11__house-1.0__seed4011` | −14.50 | −1.00 | 4.2 | `7033b9e3dc3885ae` | `676b300ee4d098e7` | −1.50 | yes | 9.4 s |
| `P11__house-0.5__seed4011` | −15.11 | −0.88 | 7.4 | `7562aab5b75b65b1` | `380a87ede4ae3606` | −0.89 | yes | 9.4 s |
| `P11__trigger-only__seed4011` | −15.84 | −0.78 | 1.2 | `3eb4b2ca269f0ff2` | `3df64dd7767ce82c` | −0.22 | no | 10.3 s |
| `P11__base__seed5011` | −16.91 | −0.81 | 1.5 | `22515ab8b46a7c92` | `f9461287330ccca0` | −0.19 | no | 10.3 s |
| `P11__house-1.0__seed5011` | −15.37 | −0.92 | 0.6 | `81ac153d7c837641` | `6cf1b49c9ae36bb7` | −0.63 | yes | 9.4 s |
| `P11__house-0.5__seed5011` | −16.38 | −0.71 | 0.8 | `d176654bd9736151` | `73602afe2c04c1ea` | −0.29 | no | 9.4 s |

**The sheet.** **Trial 1** (seed 4011) — our listener picked side B, which was **nothing added**, and wrote: “B”. **Trial 3** (seed 5011) — our listener picked side B, which was **nothing added**, and wrote: “B is way better”. **Trial 28** was this request's sentinel — the name-tag clip at seed 4011 against itself; our listener wrote: “too similar”.

## P12 — uplifting trance, 138 BPM {#p12-uplifting-trance-138-bpm}

> uplifting trance, supersaw lead melody, huge breakdown, pumping kick, euphoric festival energy

> 🔊 **P12 · seed 4012 · nothing added** · raw render `925043a260587234` · listening master `c2f50853f1441e36`
>
> 🔊 **P12 · seed 4012 · the adapter at full strength** · raw render `a6595eb4c52a5d30` · listening master `947639cbdf16072d`
>
> 🔊 **P12 · seed 4012 · the adapter at 0.5** · raw render `da93b138ec6fb88f` · listening master `12504a0e61044db3`
>
> 🔊 **P12 · seed 4012 · the name tag alone, no adapter** · raw render `197dcea107437bc7` · listening master `c55482978f9109c6`
>
> 🔊 **P12 · seed 5012 · nothing added** · raw render `aee0ce6f099163fc` · listening master `c66469260c9c7df3`
>
> 🔊 **P12 · seed 5012 · the adapter at full strength** · raw render `7e9e62f1fba1522a` · listening master `675b01324e25560d`
>
> 🔊 **P12 · seed 5012 · the adapter at 0.5** · raw render `08618e45166d42e8` · listening master `118873ac9d910b47`

| file | raw LUFS | true peak dBTP | loudness range | raw sha16 | sitting copy sha16 | gain dB | reached −16 | rendered |
|---|---:|---:|---:|---|---|---:|---|---:|
| `P12__base__seed4012` | −13.61 | −0.70 | 3.0 | `925043a260587234` | `7e01ed03bec952d6` | −2.39 | yes | 10.3 s |
| `P12__house-1.0__seed4012` | −14.93 | −0.97 | 7.7 | `a6595eb4c52a5d30` | `7a62362c66c906f1` | −1.07 | yes | 9.4 s |
| `P12__house-0.5__seed4012` | −14.33 | −1.00 | 2.4 | `da93b138ec6fb88f` | `d61b5c95d820500c` | −1.67 | yes | 9.4 s |
| `P12__trigger-only__seed4012` | −13.63 | −0.96 | 3.1 | `197dcea107437bc7` | `2a3cbce158007ac4` | −2.37 | yes | 10.3 s |
| `P12__base__seed5012` | −15.89 | −0.95 | 7.1 | `aee0ce6f099163fc` | `f18260c947c6074e` | −0.11 | yes | 10.3 s |
| `P12__house-1.0__seed5012` | −13.79 | −0.97 | 2.1 | `7e9e62f1fba1522a` | `f4a657906008fa2d` | −2.21 | yes | 9.4 s |
| `P12__house-0.5__seed5012` | −13.41 | −0.73 | 2.5 | `08618e45166d42e8` | `5ca954ee4d9ec03a` | −2.59 | yes | 9.4 s |

**The sheet.** **Trial 14** (seed 4012) — our listener picked side A, which was **nothing added**, and wrote: “A actually sounds quite a bit better (cleaner)”. **Trial 36** (seed 5012) — our listener picked side A, which was **the adapter at full strength**, and wrote: “A sounds way better, and these tracks sound WAY different, like A actually has a 4-4 beat to start, whereas B has none”. **Trial 17** was this request's sentinel — the name-tag clip at seed 4012 against itself; our listener wrote: “sounds similar on both, but actually sounds pretty good.”

## Three sets of bytes, and which one the player fetches {#three-sets-of-bytes-and-which-one-the-player-fetches}

**This run produced its listening copies twice, and this page adds a third set. A reader being asked to judge by ear is owed all three, so here they are in order.**

The **raw renders** are what the engine wrote. Their integrated loudness runs from −19.84 to −13.06 LUFS — 6.78 units, or a bit over two notches on a fader — so playing twenty in a row means working the volume knob rather than comparing adapters. That is the whole reason any of the rest exists. They are untouched in `audio/` and every loudness figure on this page was measured from them.

The **sitting's copies** are what one listener actually heard. The first attempt at them used ffmpeg's single-pass `loudnorm` and left eighteen of eighty-five clips 1 to 2.3 dB louder than the target — and in a forced-choice test, louder wins, so that was a live confound inside the gate, assigned to sides by accident. It was caught before the sitting and the set was re-made with the two-pass form, which lands the target: all eighty-five came back between −16.20 and −15.90 LUFS. That is the set the blind sheet played, and it is honest about loudness. It is not a pure level change: `loudnorm` at `linear=true` falls back to dynamic processing when a constant gain cannot also hold the ceiling, and, re-read here sample by sample against the renders they came from, thirty-eight of the eighty-five copies are not a constant multiple of the render each came from. Split by side, fourteen of the twenty-four untouched clips and nine of the twenty-four full-strength adapter clips fell back that way (Fisher's exact two-sided p = 0.25, so the imbalance is not itself established). We are reporting it rather than filing it, because it is the kind of thing that is easy not to mention. Their fingerprints are in every table below, and the copies themselves are in `audio/sitting/` beside the renders, with their own manifest, so the set our listener heard can be checked as well as the set you hear.

The **listening master** is what the players on this page fetch. It is each render with **one constant gain applied and nothing else** — no limiter, no compression, no equalisation, no trimming, no re-encoding, the same 48 kHz, 16-bit stereo WAV with the same number of samples — and its own fingerprint printed beside it. The gain is the smaller of two numbers: how far the clip sits from −16 LUFS, and how far its true peak sits from a −1 dBTP ceiling. Of the eighty-four, forty-eight land at −16 LUFS to within a hundredth, on gains of −2.94 to −0.11 dB. The other thirty-six are **left at their raw level** — thirteen of them at a gain of exactly zero, the rest trimmed by no more than −0.59 dB — because their peaks already sit at the engine's own −1 dB ceiling, so reaching −16 LUFS would have meant pushing them through it, and they stay between −19.84 and −16.02 LUFS. The other way to do that is a limiter riding the gain, and a limiter would change the very thing you are here to judge, so nothing on this page is limited. That rule is not ours to bend: it was set for the previous companion page in this series, on the same discovery, and it is why these players serve a set the listener never heard rather than the set that was heard.

## How to check these clips {#how-to-check-these-clips}

Every file in `audio/` is the exact render that was measured: copied, never re-encoded, never normalised, never re-cut, and verified against the run's own sha256 before it was staged. Every file in `audio/master/` is that same render with one level change and nothing else. The page prints the raw render's fingerprint and the master's beside every player, in that order, and the master's is the one a browser fetches. `audio/MANIFEST.sha256` and `audio/master/MANIFEST.sha256` carry every file's full sha256, one `sha256sum -c` line per file; `audio/master/master-records.json` beside them carries the whole recipe — the gain rule, the ffmpeg version, and for every clip the raw file's sha256 and the mastered file's, the loudness and true peak measured before and after, the constant gain in dB and which of the rule's two terms chose it. The third fingerprint in each table is the copy the blind sitting played; those copies are in `audio/sitting/`, with `audio/sitting/MANIFEST.sha256` beside them, so all three sets can be checked byte for byte.

The arithmetic, because the counts differ and a reader deserves to know why: the run rendered **eighty-five** clips and this page serves **eighty-four**. The odd one is the determinism control — `P01__base__seed4001` rendered a second time in a fresh process, which came back byte-identical — and that is what licenses every other byte-distinct check in the run. It is registered once, under the name it repeats, rather than served twice under two. The article's data kit carries the request payloads verbatim, the render records with every number printed here, the sealed blind key, and the listener's answers exactly as typed and timestamped before the key was opened. If a number here disagrees with the kit, the kit wins and this page is wrong.

## Who ran this, and thanks {#who-ran-this-and-thanks}

The same small team and fleet of AI agents as the article, on the same machines, and the credits are [The Ceiling Is Not the Corpus](/the-ceiling-is-not-the-corpus/)'s: the four hundred and sixteen tracks, their ninety-five artists and the licences they chose, the dataset that catalogued them, the engine, the trainer and the tools beneath are all named there in full, track by track and deed by deed, because on this run the credits are not a courtesy but the licence — [how that works](/how-we-work/) is next door, and the [licence ledger](/licences/) carries the engine's row. Every clip on this page is AI-generated, the engine's own model card asks that it be said, and it is said here as well as there.

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