🎵 CHORD PROGRESSION BUILDER
Build a progression.
Pick a key + mode, see all the chords that fit. Click to add them to your progression, press play to hear it loop at your tempo. Export as MIDI when you've got something worth keeping.
Key
Mode
Diatonic chords — click to add
Your progression
Click any chord above to start your progression.
90 BPM
Presets
How it works. Diatonic chords are the seven
chords built from each note of the scale. In major: I, ii,
iii, IV, V, vi, vii°. Minor flips qualities: i, ii°, III, iv,
v, VI, VII. Modes shift the brightness:
Dorian (minor with raised 6), Mixolydian (major with flat 7),
Phrygian (very dark), Lydian (very bright). MIDI export
bakes the progression as block chords (one bar each, channel
0 piano, velocity 96) — drop into Logic / Ableton / FL and
the chords are ready to edit.
Piano roll for full tap-and-play
with chord recognition.