Construction
A♯ Half Diminished = Root + Minor 3rd + Diminished 5th + Minor 7th = A♯, C♯, E, G♯
| Note | Interval | Degree |
|---|---|---|
| A♯ | Root | 1 |
| C♯ | Minor 3rd | ♭3 |
| E | Diminished 5th | ♭5 |
| G♯ | Minor 7th | ♭7 |
How to Play the A♯ Half Diminished
Right Hand (RH)
Place your right hand over the keys with the thumb on the root. Use the fingering: 2 – 3 – 4 – 5
Left Hand (LH)
For the left hand, start with your pinky on the root. Use the fingering: 5 – 4 – 3 – 2
A♯ Half Diminished Inversions
- Root positionA♯ – C♯ – E – G♯
- 1st inversion (A♯m7♭5/C♯)C♯ – E – G♯ – A♯
- 2nd inversion (A♯m7♭5/E)E – G♯ – A♯ – C♯
- 3rd inversion (A♯m7♭5/G♯)G♯ – A♯ – C♯ – E
Same Notes, Other Names
The notes A♯ – C♯ – E – G♯ aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
A♯ Half Diminished : Frequently Asked Questions
What is the A♯ Half Diminished chord on piano?
The A♯ Half Diminished chord contains the notes A♯ – C♯ – E – G♯. On piano, play these notes together to sound the chord.
What notes are in the A# Half Diminished chord?
A# Half Diminished is built from the A# root. Check the interactive keyboard above for exact notes and fingering.
How is the A# Half Diminished chord used in music?
A# Half Diminished appears in jazz, pop, and classical contexts. Its sound depends on the chord quality (Half Diminished).
What is the fingering for A# Half Diminished?
See the fingering chart above. Right hand typically uses thumb on root. Left hand uses pinky on root.
What are the inversions of A# Half Diminished?
Use the inversion buttons above to see each inversion with notes, fingering, and staff notation.
What is the ii-V-i progression with A# Half Diminished?
A# Half Diminished functions as the ii chord in minor-key jazz harmony, resolving through the V7 to the minor tonic.