01 / PICK LINES
Choose a network
Metro, tram, trolley, bus, and suburban rail from seven cities. Each line you add becomes its own lane, coloured the way the city colours it.
Deetta Labs presents / a browser DAW for the city
Layth*
The city is already a sequencer.
Layth reads a public transport network the way a DAW reads a session. Every line is a track, every stop is a note, and the map you commute across turns out to be a score somebody forgot to play.
Open Layth ↗Runs in the browser
No install, no plugin host
No install, no plugin host
7cities to play
1note per stop
2export formats
0things to install
layth.space
01 / How it works
Real networks.
Music you can argue with.
Nothing here is random noise dressed up as data. Layth builds each song from a city’s actual routes, stops, geography, and service patterns—then hands you a mixer and gets out of the way.
02 / PLAY THE MAP
Geography becomes melody
Latitude picks the scale degree, longitude picks the octave, so a route's shape on the map is the shape of its phrase. Busier stops can sit higher.
03 / SHAPE IT
Then mix it like a DAW
Every lane gets a synth, envelope, filter, eight-band EQ, arpeggiator, granular layer, ducking, and sends. Nothing about it stays generative unless you want it to.
04 / KEEP IT
Export or share the take
Write MIDI per lane or for the whole mix, capture real-time WAV stems, save the song to your account, or publish a link someone else can open and copy.
02 / The instrument
A studio that opens in a tab.
03 / Deeper than it looks
Generative to start. Yours by the end.
The first play-through is the city’s idea. Everything after that is an arrangement decision: which lines are audible, what they play, how tight the loop is, and what the whole thing turns into on the way out.
01Per-lane loop regions run on their own cycle, so lines of different lengths drift into polyrhythm instead of locking to one bar.
02Edit any stop directly—nudge its pitch by a scale degree, set its velocity, or duplicate a lane to voice it as a chord.
03Automation lanes, a six-pad drum machine, and four effect buses with a full send matrix keep the arrangement moving.
04Describe what you want to the AI composer in plain language and it programs the session by making the same moves you would.
05Chain saved songs into a longer set, then export the result as MIDI or capture it as WAV stems.
04 / Seven networks
Each city sounds like itself.
A dense radial metro and a sprawling bus grid do not make the same music. Switch city and the whole instrument changes underneath you, because the geography did.
- 01Budapest
- 02Helsinki
- 03Berlin
- 04Prague
- 05New York
- 06Zürich
- 07Warsaw
Built on open GTFS transit data published by each city’s transport authority.
No installer, no license key
Play a city tonight.
Layth opens in the browser on desktop or phone. Start free, and make an account only when you want to save a song, share it, or export the take.
Open Layth ↗