musmath
chords
scales
tunings
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chord finder
C
C#
D
D#
E
F
F#
G
G#
A
A#
B
Chord
notes:
A##
C##
E##
G##
B##
F###
intervals:
1P
3m
5P
7m
9M
13M
semitones:
3
4
3
4
7
-9
other names:
A##m13, A##min13, A##-13
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A##m
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A##madd9
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A##m9