The A-sharp dominant seventh flat five chord (abbreviated "A#7(b5) chord") is a four-note chord consisting of the notes A, C, E, and G. The chord is formed by lowering the fifth of a A-sharp dominant seventh chord a half step.

Name
A-sharp dominant seventh flat five chord
Notes
A C E G
Intervals
1 3 5 7
Chord symbol
A7(b5)
Alternative symbol
A7b5
Type
Tetrad (four-note chord)

A#7(b5) chord on piano

A#7(b5) chord on guitar

A#7(b5) chord on ukulele

A#7(b5) chord on the staff