musmath
chords
scales
tunings
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chord finder
C
C#
D
D#
E
F
F#
G
G#
A
A#
B
Chord
notes:
C
E
G
B
D
intervals:
1P
3M
5P
7M
9M
semitones:
4
3
4
3
-2
other names:
Cmaj9, CΔ9
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Cmaj13
Cmaj9#11
CM13#11