Abdim7 chord
The A-flat diminished seventh chord (abbreviated "Abdim7 chord") is a four-note chord consisting of the notes A♭, C♭, E♭♭, and G♭♭. The chord is formed by adding a diminished seventh to a A-flat diminished chord.
Name
A-flat diminished seventh chord
Synonym
A-flat fully diminished chord
Notes
A♭ C♭ E♭♭ G♭♭
Intervals
1 ♭3 ♭5 ♭♭7
Chord symbol
A♭o7
Alternative symbols
A♭dim7 A♭dim A♭o
Type
Tetrad (four-note chord)