Tool 02 · harmony

Random chord generator

Hear unexpected chords through natural instrument samples and improvise melodies by ear. Choose complete harmonic freedom, one tonal center, or selected scales and modes.

Harmony

Free randomNew root and chord type every time. Fixed rootOne root with changing chord colors. Scale / modeDiatonic chords from selected tonal worlds.

Starting / fixed root

Root behavior

Chord structure

Chords per scale8

After this many chords, the app chooses another selected scale. The same scale is not chosen twice in a row.

Chords per root8

Scales and modes to practise

Chord palette

Major Minor Diminished Augmented Sus2 Sus4 Major 7 Minor 7 Dominant 7 Half-diminished Diminished 7 Minor-major 7 Major 6 Minor 6 Add9 Major 9 Minor 9 Dominant 9

Allowed scale degrees

I II III IV V VI VII VIII

Voicing

Chord display

Avoid recent chord repetitions

Playback

Tempo60 BPM

Beats per chord2

Beats per bass note4

Natural bass sounds retrigger on this interval. Synth stays continuous and changes pitch only at the next bass point.

A4 tuning440 Hz

Chord sound

Bass support

Bass sound

Chord volume80 %

Bass support volume22 %

Start slowly and connect chord tones with short melodic phrases. Smooth voice leading keeps the accompaniment musical; free random mode deliberately removes tonal predictability.

Metronome

Enable metronome sound

Disabled by default. The chord and bass timing still runs normally; activate this for an audible practice pulse.

Time signature

Click sound

Downbeat sound

Metronome volume85 %

Downbeat accent70 %

Show metronome beatBeat 1

Free random

Ready

Press Start and play what you hear.