A7(b5) chord
The A dominant seventh flat five chord (abbreviated "A7(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 dominant seventh chord a half step.
Name
A 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)