A Diminished 7 guitar chords

The below diagrams show you how to play the A Diminished 7 chord in various positions on the fretboard with suggested finger positions.

A Diminished Seventh chord attributes:

Interval positions with respect to the A major scale, notes in the chord and name variations:

• Scale intervals: 1 - b3 - b5 - bb7
• Notes in the chord: A - C - D# - F#
• Various names: Adim7 - A Diminished 7

Diminished chords explained