4 3 1 1 1 2
Ab7
Notes: Ab · C · Eb · Gb
Also spelled G#7
Triads
Suspended
Sevenths
Extensions
Common shapes (4)
4 6 4 5 4 4
x x 6 8 7 8
x 11 10 11 9 x
Other shapes (19)
Showing 12 of 19
4 3 4 5 x x
4 3 4 1 x x
4 6 4 5 x x
4 3 4 x 4 x
4 x 4 5 4 x
x x 6 5 7 4
4 x 4 1 1 x
4 3 4 x 1 x
x x 6 5 7 8
4 3 4 1 1 x
4 x 4 5 7 x
4 x 6 5 7 x
About Ab7
The notes of Ab7 are Ab (root), C (major third), Eb (perfect fifth) and Gb (minor seventh). In scale degrees above the root, the formula is 1 – 3 – 5 – b7. It is a dominant seventh chord: a major chord plus a minor seventh, which gives it the characteristic tension of blues and jazz.
On guitar, Ab7 has 4 common shapes: the G, E, D and C shapes. These are CAGED system shapes, the basis for playing the same chord anywhere on the neck. There are 19 more voicings sorted by difficulty; use the viewer switches to add inversions and stretches. Ab7 is also written as G#7: the same chord with the root spelled differently, and it sounds identical. The more common spelling is Ab7.