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
Bb
intervals:
1P
3M
5P
9m
semitones:
4
3
6
-1
other names:
AMaddb9
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A7b9#11
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A7b9#9