2 x 1 2 1 x
Gb dim7
Gb diminished seventh (dim7)
Notes: Gb · Bbb · Dbb · Fbb
Bbb sounds the same as A. Dbb sounds the same as C. Fbb sounds the same as Eb.
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): Gb dim7, A dim7, C dim7 and Eb dim7.
More common: F# dim7
Triads
Suspended
Sevenths
Extensions
Drag the file into your recording program (DAW). It plays the guitar's real notes.
Common shapes (3)
x x 4 5 4 5
x 9 10 8 10 x
Other shapes (15)
Showing 12 of 15
2 0 1 2 1 x
2 3 1 2 x x
2 0 4 5 4 x
2 0 1 x 1 2
2 0 1 2 1 2
2 3 x 2 4 x
2 0 x 5 4 2
2 0 x 5 4 5
2 3 4 2 4 2
2 3 1 2 1 x
x 9 7 8 x 8
x 9 x 8 10 8
About Gb dim7
Gb dim7 is built from four notes: Gb (root), Bbb (minor third), Dbb (diminished fifth) and Fbb (diminished seventh). Its interval formula is 1 – b3 – b5 – bb7. It is symmetrical: its four notes are three semitones apart, so the same shape repeats every three frets and works for four different chords.
On guitar, Gb dim7 has 3 common shapes: the E, D and A shapes. These are CAGED system shapes, the basis for playing the same chord anywhere on the neck. The viewer also shows 15 more voicings, from easiest to hardest. Gb dim7 is also written as F# dim7: the same chord with the root spelled differently, and it sounds identical. The more common spelling is F# dim7.