Chord Progression → Melody → MIDI

Type a chord progression, generate a melody over it, preview the piano roll, play it back, and export a real .mid file.

Chord progression (comma or newline separated, e.g. G, C, D, Dm, C, Am. Use Chord:beats to override beat length, e.g. G:2)

Tempo (BPM)

Time signature

Default beats per chord

Melody density

Melody

Include melody line

Melody register

Melody instrument

Seed (repeatable melody + orchestra)