musmath
chords
scales
tunings
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C
C#
D
D#
E
F
F#
G
G#
A
A#
B
Chord
notes:
A##
C###
E##
G###
B##
intervals:
1P
3M
5P
7M
9M
semitones:
4
3
4
3
-2
other names:
A##maj9, A##Δ9
Related
Chords
Chords
with less notes
A##maj
A##5
A##sus2
A##Madd9
A##maj7
Chords
with more notes
A##maj13
A##maj9#11
A##M13#11