whatAb+add#9
Root Position
Ab C E B
Inversions
First 1st Inversion (Ab+add#9/C)
C E B Ab
Second 2nd Inversion (Ab+add#9/E)
E B Ab C
Third 3rd Inversion (Ab+add#9/B)
B Ab C E
Similar chords
Ab7#5#9
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C E G# B
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Ab Db E G