A deterministic music engine you play by ear.
Septet is a band of seven players you tune like a studio rack. Every control's colour tells you which musical question it answers — turn the knobs, throw the switches, and keep the seed of any tune you like. The same seed always makes the same tune.
Seven players. One graph. Each a colour.
Every player carries one musical concern, and its signature colour is that concern. Squint and the rack reads as families; focus and you read the exact voice.
The ur-material — one short cell every other player can quote.
The song's form and arc — AABA, the builds, the cadence that lands.
Key, scale, and the chord changes every other player reads.
The kit and the drive — the energy and push the whole band rides.
Walks the changes — a line of its own, trading call and answer over the chords.
The busy voice — arpeggios threading the harmony.
The lead line — its shape, its question-and-answer.
Thousands of tunes that actually sound good.
Not noise with a random button — a band that listens to itself. Every tune is one seed; the same seed always makes the same tune, so the ones you like are yours to keep.
Start free. Keep what you make.
Generation is unlimited on every plan — you pay to keep more seeds and to render to the SID and NES engines. See the full sheet →