Reference

Chords by Key

Every major key holds seven chords, and they always come out M m m M M m °. Each row below is a key and each column a numeral, so any chord you need is where the two cross. Pick a key to read its row, or tap any cell to hear it.

Notes & ScalesIntervalsChordsChords by KeyModesRhythmsDictionary

Pick a key, read its row

A major key's seven chords always come out M m m M M m °. Change the home note and every chord moves with it.

Home note · sets the key
C
Dm
Em
F
G
Am
B°
C

All twelve keys

Keys are listed a fifth apart, so each row shares four chords with the row above it. Tap any chord to hear it, or a key to pick its row.

KeyIiiiiiIVVvivii°

A key that reads in flats spells its chords in flats: IV of E♭ is A♭, not G♯. F♯ major is the one sharp-side black key, so its row reads in sharps.

One chord, three keys

Every chord in the table appears in three keys. A major chord is I in one key, IV in another, and V in a third; a minor chord is ii, iii, and vi.

G

G is home.

D
G

D first, so G lands as IV.

C
G

C first, so G lands as V.