Chordulator!
Select Root Tone
A
A#
B
C
C#
D
D#
E
F
F#
G
G#
2
3
4
5
I
II
III
IV
V
VI
VII
I
II
III
IV
V
VI
VII
I
II
III
IV
V
VI
VII
Hold down any key to play minor chords
Note: Does not yet work on phones and touch screens.