The Beat Lab, asked and answered

The Beat Lab is a drum machine in your browser, and its 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 you typed leaving the page. There are twenty-eight of those answers. This page is the same twenty-eight, answered outright. The answers name the lab's furniture as it appears on the screen: a grid of steps, a box you type into, a card where the genie's words land, and a switch on that card that posts to the board.

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-eight gets an invented answer. Once a beat is yours and your words nearly match a question it holds, 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. Anything else it does not recognise goes to the genie as a wish — a new beat on a fresh page, a tweak once a beat is yours — and is kept the way every wish is kept.

One number on this page is wider than written for a few days. The everyday allowance the answer to what is a wish gives — three wishes in any thirty seconds and a hundred and twenty a day from one network address — is, from 10:01 (UTC) on 2026-09-04 until the morning of 2026-09-08 (UTC), six at once and four hundred and eighty a day, because a room of friends on one wifi is one address to the lab. The everyday sentence stays the rule, and this paragraph goes when the door goes back.

Do I need the genie to make a beat?

No — it can look that way, because the genie is the first thing on the page, but a beat needs no model at all: the drum machine makes one by hand, in your browser, with no wish spent and nothing sent. The genie is an optional way in — words or a photo into a beat, a tweak once you have one — and the board's reading before a post is the other place it appears.

from the guide: "It can look that way at first glance, because the genie is the first thing on the page, but a beat needs no model at all: the drum machine makes one by hand, in your browser, with no wish spent and nothing sent anywhere."

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."

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."

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."

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."

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."

Who can see my beat?

No other visitor, until you put it on the board — and then anyone who visits, with no name and nothing about you attached. The workshop's own ledger keeps every beat the genie made, without anything about who made it.

from the guide: "No name, no account, no address."

Can strangers see what I typed?

No — nothing you type reaches another visitor, with one exception you make yourself: a share link carries the title and notes the genie wrote, and a title can be words you talked it into.

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."

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."

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."

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 (twenty-six since 2026-09-04, when the question above the body — do I need the genie to make a beat?"

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. The room you asked for comes back with it, so a groove you put up an hour later is recorded as the room you chose rather than one the lab worked out for itself.

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."

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. The link carries the room the groove was built in too, so it opens in the room you asked for rather than one worked out at the far end.

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

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."

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."

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."

What does "remix of a groove" mean?

It means this groove grew out of another one on the board — when the label says remix of a board groove, tap it to hear what this one came from, and ↩ Back brings your own beat home. When it says the groove left the board, there is nothing left to play.

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."

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."

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, or names it first when nothing it has sealed can name that exact beat, either way one wish, so a groove is never left unnamed while the genie can still name it.

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); if it has read it but has no name it sealed for the beat now on screen, the switch asks for a name instead, which is the same one wish, so that a post is never left unnamed while the genie can still name it; flip it off and the post comes down."

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 keeps the key to your fifty most recent posts. Past fifty, the older ones stay up with no way to pull them down.

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."

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."

What do the two rows do?

They are rows eleven and twelve, two rows of your own among the synthesised 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: "The genie never writes on those rows and never clears them — a wished beat lands under whatever you built there — but it hears them by instrument name, so its reading can tell you what it thinks of the cowbell."

What is the wobble row?

The bottom row is a bass with a growl in it — a saw through a filter that opens and shuts in time with your tempo, one sweep per beat on a tap and two on an accent. TUNE is the note, DECAY is how long it growls. The die deals it a line, MUTATE nudges it, and the genie may write it; none of them will write over a line you tapped yourself.

from the guide: "Three things can now put a bass line on that row, and all three of them are things you press. 🎲 Random, the die by the presets, deals one — it picks one of four shapes a growling bass actually sits in under a kick (on the four beats; on the off-beats, so the kick breathes; the three-three-two pattern that runs 1, 4, 7 then 9, 12, 15 across the bar; or one long accented note on the one that rides most of the bar), and, three times in four, makes one small change to it — a nudge of an eighth note, a dropped hit, an added one; the fourth deal is the shape as it stands — and sets the row's two dials to suit: a low note, the bottom E or the fifth above it, and a note length that fits the shape it dealt."

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."

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."

What do warmth and space do?

Warmth drives the mix through a soft saturation — gentlest 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 that is always in the path: at zero it is at its gentlest, and as the dial rises the loud parts round off and thicken the way tape or a warm amplifier does."

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, the voice and ✎ tell the workshop need us, and each says so if it cannot reach us — except the board's own feed, which stays out of sight until it can.

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, the voice and the ✎ note to the workshop need us, and each of them says so if it cannot reach us — except the board's own feed, which stays out of sight until it can, the way an empty board does."

Where does the picture on the board come from?

It's painted for that groove by an image model of ours, from the beat and the family it was made in — the tempo, the swing, the pattern, the dials — and from nothing anybody typed. A groove whose family a person named gets one painted, and so does one the lab worked a family out for itself from the genie's own words about that groove or, failing those, from its tempo; a groove the die chose a family for, or that the genie's reading fell back on, gets no picture: the card keeps an empty square where one would go (the same square in every state, so it never moves the words beside it) and the wall's tile shows a drawn blank, while under a real picture one line names the model, its steps and the exact recipe.

from the guide: "What the picture is made from. The beat and the family, and nothing else: the tempo, the swing, the pattern, the dials."

Where these answers come from

This page was derived on 2026-09-18 (UTC) from the lab's question bank — beat/bank.json, twenty-eight entries, fingerprinted bank 909abad32f03: 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 sentence quoted under each answer is from the lab's published explainer, How the Beat Lab works — exhibit twenty-eight on this shelf, and the long version of everything here.

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 no request, no log line and no stored key carries a word you typed off the page it was typed on. Ask for an answer aloud and what travels is which of the twenty-eight you were given and the bank's fingerprint — never your words — and that play writes no ledger line and no journal line about the answer.

Who ran this, and thanks

No model is asked for any answer on this page, and none ran to derive it. The answers were drafted in the workshop by the AI agents in the byline, read and approved word by word by the humans, and read back into this page by a script that sets each one beside the sentence of the guide it cites. What this page — exhibit thirty-eight — stands on is that guide, exhibit twenty-eight, and the lab's own build, which refuses to pour when a sentence an answer cites is no longer in the guide it names. The humans read every answer and signed it.