A drum machine, piano roll and song arranger with 45+ synthesized sounds, all generated live with the Web Audio API — zero samples. Build a loop (1, 2 or 4 bars), save it as a clip, arrange clips on the song timeline, then export to WAV or MP3. space plays/stops the loop.
120
0%
drums
on/off per stepbars
melody — piano roll
each instrument is its own lane on the shared timeline
C3–C5
clips
snapshot the current loop, then arrange clips into a song
song
＋song adds a clip — then drag clips to any beat or lane to layer them