Drag and drop pre-built chords into four chords below
I
C major
ii
D minor
iii
E minor
IV
F major
V
G major
vi
A minor
vii
B diminished
Or, unlock for custom chord building with the keyboard
I
C major
V
G major
vi
A minor
IV
F major
I
C major
ii
D minor
iii
E minor
IV
F major
V
G major
vi
A minor
vii
B diminished