The Beat Lab, asked and answered

The Beat Lab's genie takes a few words and builds a beat out of them. Ask it a question about the lab instead, and something quieter happens: the page answers from a list of answers it is already carrying — instantly, with no wish spent, no model asked, and nothing about the question leaving the page. There are twenty-five of those answers. This page is the same twenty-five, answered outright.

They are not written twice. The lab's own question bank is one file in the lab's repository, and this page is derived from it, so an edit to a single word moves the genie's answer and this page in the same commit. Every answer was written from one sentence of the lab's published explainer, and that sentence is quoted under it here — the answer is short on purpose, and the sentence is where the long version lives.

Nothing outside the twenty-five gets an invented answer. Asked something it does not hold, the lab says so and points at the explainer: that one's outside the lab — "read how it works" at the foot of the page has the long answer.

how does this work?

it is a drum machine that runs in your browser, with a genie that turns a few words into a beat — the sounds are built here, the genie runs on machines the workshop owns, and the board only repeats what the genie sealed.

from the guide: "The sound never leaves your device." — read how it works

how do I make a beat?

type a few words in the box and hit the button — or tap the grid yourself, one row per drum voice, sixteen steps across a bar.

from the guide: "The machine is a grid: one row per drum voice, sixteen steps across one bar." — read how it works

what can I say?

a few words make a beat, an instruction changes the one you have — darker, add a fill, half-time — and a question about the lab gets an answer.

from the guide: "Refine sends your beat with an instruction — darker, add a fill, half-time — and gets back an edit rather than a new beat." — read how it works

what is this beat?

the genie will read the grid and write a short review of it — that reading is also what the board takes.

from the guide: "Asking the genie to describe your beat runs the other way: it reads the grid and writes the review." — read how it works

what is the board?

it is the lab's public shelf — a groove, and the genie's words about it, put up for anyone to hear, with no name on it.

from the guide: "The board is the lab's public shelf: a groove, and the genie's words about it, posted for anyone to hear." — read how it works

who can see my beat?

nobody, until you put it on the board — and then anyone who visits, with no name and nothing about you attached.

from the guide: "No name, no account, no address." — read how it works

can strangers see what I typed?

no — what strangers read is always something the genie wrote from the beat alone, and a wish you typed never appears in it.

from the guide: "So what strangers read is always something the genie wrote from the beat alone; a wish you typed never appears in it." — read how it works

is my photo stored?

it is never written to disk — no temp file, no thumbnail, no cached copy — and the model that looks at it keeps it only for the length of the call.

from the guide: "The beat service never writes it to disk — no temp file, no thumbnail, no cached copy — and the model that looks at it keeps it only for the length of the call." — read how it works

what does the genie run on?

two open-weight models on graphics cards the workshop owns — a doorman that checks the request, and a larger writer that composes the beat. no AI company sees your request.

from the guide: "Ours are open-weight, meaning anyone can download and run them, and we run them on graphics cards we own." — read how it works

is this AI?

the beat and its review are written by a language model on the workshop's own machines — this answer is not: it is one of the lab's own written ones, kept in the page.

from the guide: "But no model is asked: the page carries twenty-five written answers, each one derived from a sentence in this guide (the build refuses to pour if a cited sentence changes and its answer did not), matched by the words you typed, on your device, with nothing sent anywhere." — read how it works

can I save this?

the page saves your beat the moment the tab goes away, so it comes back when you return — and a share link is the copy you can keep or send.

from the guide: "The page keeps your beat when the tab goes away and brings it back when you return, and a share link is the copy you can keep or send." — read how it works

how do I share?

⤴ share the groove makes a link with the whole beat written into it — every step, every dial — and whoever opens it has the beat rebuilt on their own device.

from the guide: "Whoever opens it has the beat rebuilt on their own device; a shared beat never passes through us." — read how it works

what is a wish?

a wish is one ask of the genie — a beat, a tweak, a reading, a name, a photo — and because each one costs real computer time the genie grants three in any thirty seconds and a hundred and twenty a day.

from the guide: "Because every wish costs real computer time, the genie has manners built in: three wishes in any thirty seconds and a hundred and twenty a day from any one network address (a house on one wifi is one address, so it is sized for a room, not a person); and across everybody at once, two wishes composed at a time, a shared allowance of sixty that refills thirty a minute, and at most sixty-four requests held open." — read how it works

why did it say rest?

the wishes came faster than the genie's allowance — the count on the buttons is the wait it named itself, usually ten seconds, and your beat is untouched while it runs.

from the guide: "When the genie is resting, your beat stays exactly as it is — the page shows the wait the genie itself named, usually nothing at all and ten seconds after a third quick wish, and the tap works again when the rest ends." — read how it works

what is a remix?

take a groove off the board with ▶ listen now, change something you can hear, and put your version up — the board remembers where it came from.

from the guide: "One other thing can appear on your card: remix a groove and post your version, and the original's card counts the remix; the board remembers where a groove came from." — read how it works

what does "remix of a groove" mean?

it means this groove grew out of another one on the board — tap it to hear the groove it came from, and ↩ Back brings your own beat home.

from the guide: "And on the board, the "remix of a groove" note is now a button: tap it to hear the groove this one grew out of, and ↩ Back brings your own beat home." — read how it works

what is the seal?

every time the genie describes a beat the server puts a tamper-evident seal on those exact words for exactly the beat it was shown — and the board accepts only text whose seal checks out.

from the guide: "Every time the genie describes a beat, our server puts a tamper-evident seal on those exact words for exactly what it was shown — the pattern, the tempo and the swing — and the board accepts only text whose seal checks out." — read how it works

how do I put it on the board?

the switch on the card does it in one tap — and if the genie has not read your beat yet it reads it first, which costs one wish.

from the guide: "Flip it on and the post goes up — and if the genie has not read your beat yet, the switch asks for that reading first, which costs one wish (see the addendum of 2026-08-30 14:13); flip it off and the post comes down." — read how it works

how do I take it down?

the same switch takes it down, and that costs no wish — but only from the browser you posted it in, which is the one place the key to it exists.

from the guide: "Taking a post down never counts as a wish: no model is involved, the board checks the seal and writes the line." — read how it works

what are the pads?

a pad is a key you tap for a single sound — a zap, a riser, a wood block — and each of the six can be set to any of the twenty-two.

from the guide: "A pad is a key you tap for a single sound — a zap, a riser, a wood block — and each pad can be set to any of twenty-two sounds." — read how it works

what do the two rows do?

they are two rows of your own under the ten drum voices — give either one any of the pad sounds and it plays that sound on the steps you tap. the genie never writes on them and never clears them.

from the guide: "Measured on 2026-08-31 from our own web server through the public site, on the machines the genie has used since 2026-08-29 (twelve rows — ten synthesised voices and your two — and twenty-two pad sounds; earlier readings, from the days this guide was published and re-cut, are in the addenda at the end)" — read how it works

can I use my own sounds?

no — every sound here is built from raw waveforms the instant it plays, so there is nothing to bring in; what you choose from is the twenty-two the machine makes.

from the guide: "Every sound in the Beat Lab is synthesised — built from raw waveforms the instant it plays, by your own browser." — read how it works

what does swing do?

swing delays every off-beat — the gap after each even step grows and the next gap gives the time back, so a bar is still exactly a bar. at zero the beat is dead straight; the dial runs to sixty.

from the guide: "Swing delays every off-beat — the gap after each even step grows, and the gap after the odd step that follows gives exactly that time back, so a pair of steps always spans two steps and a bar is always exactly a bar; at zero the beat is dead straight, and the dial runs to sixty, where the off-beats lean as far back as the machine allows." — read how it works

what do warmth and space do?

warmth drives the mix through a soft saturation — clean at zero, rounder and thicker as it rises; space is how much of a short reverb room you hear; the filter is a low-pass that takes the top off every sound at once.

from the guide: "Warmth drives the whole mix through a soft saturation curve: at zero it is clean, and as the dial rises the loud parts round off and thicken the way tape or a warm amplifier does." — read how it works

does it work offline?

once the page has loaded the machine needs nothing else — the beat, the sounds, the pads and the grid all run in your browser, so the music keeps playing if the connection drops. only the genie, the board and the voice need us, and each says so if it cannot reach us.

from the guide: "And the network: once the page has loaded, the machine needs nothing else — the beat, the sounds, the pads and the sequencer run entirely in your browser, so if your connection drops the music keeps playing and every step you tap still lands; only the genie, the board and the voice need us, and each of them says so if it cannot reach us." — read how it works

Where these answers come from

This page was derived on 2026-09-04 (UTC) from the lab's question bank — beat/bank.json, twenty-five entries, fingerprinted bank 92f6c73c2afc: the first twelve hex of the file's own sha256. The lab stamps that same twelve hex into its page at every build, so the two can be held up against each other — if they match, this page and the genie are answering out of one file.

The law those answers are given under is one sentence: an answer is instant and costs no wish, no model is asked for it, nothing is sealed or posted by it, and nothing about the question — not a request, not a log line, not a stored key — ever leaves the page it was typed on.

Who ran this, and thanks

Nothing ran. No model is asked for any answer on this page, and none ran to make it: the answers were written by the workshop — the small human team and the fleet of AI agents in the byline — for the lab's question bank, read back by a script, and set beside the sentences of the guide they cite. What the page stands on is that guide, exhibit twenty-eight, and the lab's own build, which refuses to pour when an answer and the sentence it cites part company. The humans read every answer and signed it.