A Diminished Seventh
Piano chord — 4 notes
A
Diminished Seventh
Root Position: A – C – E♭ – G♭
Bass note: A
RootChord tone
All Voicings — A Diminished Seventh
Root PositionA – C – E♭ – G♭(bass: A)
1st InversionC – E♭ – G♭ – A(bass: C)
2nd InversionE♭ – G♭ – A – C(bass: E♭)
3rd InversionG♭ – A – C – E♭(bass: G♭)
A Diminished Seventh Piano Chord — Notes and Inversions
Notes: A, C, E♭, G♭
Intervals: 1P, 3m, 5d, 7d
Number of notes: 4
Also known as: dim7, °7, o7
The A Diminished Seventh chord contains 4 notes (A, C, E♭, G♭). This chord has 3 inversions in addition to the root position. Use the interactive piano keyboard above to explore each voicing.