Make a tune

Everything renders here in your browser. Nothing uploads. A favorite is just its seed, so it re-renders identically forever.

Feel

Press Randomize to roll a track in this style, or Random style to jump somewhere new.

Length

sec

Seed

Same seed, same track — every time, on any device.

Tempo

bpm

Blank lets the seed choose.

Seamless loop

Crossfades the end into the start and rounds to whole bars, so it repeats cleanly.

Going under a voiceover

Opens a gap where a voice sits, and lands every bed on the same loudness.

Shared links start playing

Whoever opens your link hears it straight away, or on their first click.

Recorded drums and strings

Real kit, percussion, pizzicato and bow attacks. Turn it off for the fully synthesized studio — the same seed, played on the old instruments.

Shape Nine sliders. Center is the preset exactly as shipped.

Press ▶ on any slider to hear its two extremes back to back.

Sections & delivery Section lengths and loudness, straight off the readout. Auto is hands-off.

Section lengths apply to the next render; loudness and peak are instant.

Favorites

Nothing saved yet. Roll something you like and press Favorite.