A dominant 7th flat 5 · Piano
A7♭5 Chord on Piano
The A7♭5 chord (A dominant 7th flat 5) is built from the notes A, C#, D# and G. The keyboard diagram below shows exactly which keys to press.
Chord diagrams
Notes in this chord
- A
- C♯
- D♯
- G
Degrees: 1 – 3 – ♭5 – ♭7
How to play
To play A7♭5 on piano, press A, C#, D# and G together. In root position the lowest note is A, and the finger numbers follow the keys left to right in the diagram.
Theory behind the chord
The 7♭5 chord lowers the fifth of a dominant seventh, thinning out the chord and sharpening its tension. It shows up in jazz and in altered dominant sounds heading towards a resolution. On A7♭5 this structure sits on the root A, so the degrees 1 – 3 – ♭5 – ♭7 map onto A, C#, D# and G.
Frequently asked questions
- Which notes are in the A7♭5 chord?
- A7♭5 contains the notes A, C#, D# and G. Relative to the root these are the degrees 1 – 3 – ♭5 – ♭7.
Practise A7♭5 on your phone
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