5 x 4 5 4 x
A dim7
A diminished seventh (dim7)
Notes: A · C · Eb · Gb
It is a symmetrical chord: its four notes are three semitones apart, so the same shape repeats every 3 frets and works for four chords (same notes, a different root): A dim7, C dim7, Eb dim7 and F# dim7.
Triads
Suspended
Sevenths
Extensions
Drag the file into your recording program (DAW). It plays the guitar's real notes.
Common shapes (2)
x x 7 8 7 8
Other shapes (20)
Showing 12 of 20
x 0 4 5 4 x
x 0 1 2 1 2
x 0 4 5 4 5
5 0 4 5 4 x
x 0 4 5 4 2
x 0 7 8 7 8
5 6 4 5 x x
x 0 10 8 7 x
x 0 10 11 10 11
5 0 4 5 4 5
5 0 x 5 4 2
5 3 4 x 4 x
About A dim7
The A dim7 chord is made up of A (root), C (minor third), Eb (diminished fifth) and Gb (diminished seventh). Its interval formula is 1 – b3 – b5 – bb7. It is a diminished seventh chord: it stacks three minor thirds, sounds very tense and unstable and wants to resolve, typical of jazz and classical music.
On guitar, A dim7 has 2 common shapes: the E and D shapes. These are CAGED system shapes, the basis for playing the same chord anywhere on the neck. The viewer also shows 20 more voicings, from easiest to hardest.