Adim chord
The A diminished chord (abbreviated "Adim chord") is a triad consisting of the notes A, C, and E♭. The chord is formed by lowering the fifth of a A minor chord a half step.
Name
A diminished chord
Synonym
A diminished triad
Notes
A C E♭
Intervals
1 ♭3 ♭5
Chord symbol
Ao
Alternative symbols
Adim Am(b5) Amb5
Type
triad (three-note chord)