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
F#
B
D#
intervals:
1P
3M
5P
6M
9M
11A
semitones:
4
3
2
5
4
-6
other names:
A69#11
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AM13#11
A13#11