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A7♯9♯5 chord

A Dominant 7th #9 #5

A7#9#5 · Root

1A33C#4#5E#4b7G4#9B#4
1C4#5b7#9C5C63

Every chord tone stacked from the root up.

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Notes

A – C♯ – E♯ – G – B♯

Formula

1 – 3 – #5 – b7 – #9

Practice Note

This altered dominant combines two sharp tensions and most often drives a V–I resolution. The altered scale is a natural choice; the root may be left to the bass when a bassist supplies it.

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About A7#9#5

The A7#9#5 chord sounds distinctive, with a dominant 7th #9 #5 character. Its notes are A, C#, E#, G, B#.

All A chords (61)

Triads

7ths

Extended

Altered