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Dim & aug familyvii°7 in A harmonic minor

A♭ diminished seventh chord

A♭dim7

A♭ diminished seventh

Piano root position

  • Root
  • ♭3
  • ♭5
  • 𝄫7

Guitar standard tuning

Barre · fret 3

Lay your index flat across strings 4 to 2 at fret 3.

EA×DGBe×12345Barre at fret 3A♭G𝄫C♭E𝄫

Finger: 1 index, 2 middle, 3 ring, 4 little

Notation treble clef

𝄞♭♭𝄫𝄫

Intervals

12 semitones
  1. A♭1
  2. ♭2
  3. 2
  4. C♭♭3
  5. 3
  6. 4
  7. E𝄫♭5
  8. 5
  9. ♯5
  10. G𝄫𝄫7
  11. ♭7
  12. 7
  • A♭ Root
  • C♭ Minor 3rd
  • E𝄫 Diminished 5th
  • G𝄫 Diminished 7th

About this chord

What is an A♭ diminished seventh chord?

A♭dim7 is built from 4 notes: A♭ (the root), C♭ (the ♭3), E𝄫 (the ♭5), G𝄫 (the 𝄫7). Symmetrical stacked minor thirds: dramatic, silent-film suspense.

Notes
A♭ · C♭ · E𝄫 · G𝄫
Formula
1 · ♭3 · ♭5 · 𝄫7
Also written
A♭°7 · A♭o7
Found in
vii°7 in A harmonic minor

Scales that contain A♭dim7

Neighbours

Chords close to A♭dim7

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All 348 chords

Every chord type on every root, each with its own page.

C

D♭

D

E♭

E

F

G♭

G

A♭

A

B♭

B