Adim7 chord (A diminished seventh) on piano
Adim7 (A diminished seventh) has four notes: A, C, E flat and G flat. Its formula is 1, b3, b5, bb7.
Adim7 inversions and fingering
A C Eb Gb · RH 1-2-3-5 · LH 5-3-2-1
C Eb Gb A · RH 1-2-3-5 · LH 5-3-2-1
Eb Gb A C · RH 1-2-3-5 · LH 5-3-2-1
Gb A C Eb · RH 1-2-3-5 · LH 5-3-2-1
A C Gb · LH 5-3-1
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| Symbol | Adim7 |
|---|---|
| Also written | A°7, Ao7 |
| Notes | A C Eb Gb |
| Formula | 1 b3 b5 bb7 |
| Intervals | root, minor third, tritone, major sixth |
| Type | Diminished seventh chord |
Adim7 across the keyboard
Piano, C3 to C5. Notes in this scale, low to high: C3 (flat 3), Eb3 (flat 5), Gb3 (double flat 7), A3 (1), C4 (flat 3), Eb4 (flat 5), Gb4 (double flat 7), A4 (1), C5 (flat 3).
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Questions
What notes are in the Adim7 chord?
Adim7 (A diminished seventh) has four notes: A, C, E flat and G flat. Its formula is 1, b3, b5, bb7. A is the root, C is the minor third, Eb is the tritone and Gb is the major sixth.
How do you play Adim7 on piano?
Play A, C, Eb and Gb together. Root position: A C Eb Gb · RH 1-2-3-5 · LH 5-3-2-1.
What is the difference between Adim7 and Adim?
Adim7 is Adim (A, C and Eb) with Gb, the double flat 7th, added.