Chord Number Keyboard

Pick a mode and a home note. Each number is a chord built on that step of the scale. Tap a number to see its notes light up on the keys.

Mode and home note

Mode

Home note

MajorMinorDiminished (rarely used)

Show

Scale numbers on the keys Show the same notes in other octaves Show whole and half steps Mark the mode’s special note

Root noteSpecial noteSame note, other octave

Chord shape

W is a whole step: skip one key. H is a half step: the very next key. Colored notes are in the chord you're on.

BPM

One chord per bar, four beats each. Change the key while it plays: the numbers stay the same and the chords move with them.