musmath
chords
scales
tunings
scale finder
chord finder
C
C#
D
D#
E
F
F#
G
G#
A
A#
B
Chord
notes:
A
C#
E
G
Bb
B#
intervals:
1P
3M
5P
7m
9m
9A
semitones:
4
3
3
3
2
-3
other names:
A7b9#9
Related
Chords
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with less notes
Amaj
Am
A5
Am7
A7
A7b9
A7#9
Aalt7
AMaddb9
A7no5