4 x 4 4 3 x
Abm7b5
Ab half-diminished (m7b5)
Notes: Ab · Cb · Ebb · Gb
Ebb sounds the same as D.
More common: G#m7b5
Triads
Suspended
Sevenths
Extensions
Drag the file into your recording program (DAW). It plays the guitar's real notes.
Common shapes (3)
x x 6 7 7 7
x 11 12 11 12 x
Other shapes (31)
Showing 12 of 31
4 2 0 4 0 2
x 11 0 11 0 x
4 2 0 1 0 2
4 5 4 4 0 x
4 5 0 4 0 2
x 11 0 11 0 10
4 5 4 x 0 4
4 2 0 x 3 2
4 x 0 4 3 2
4 5 0 4 7 x
4 5 4 7 0 x
x 11 0 11 12 x
About Abm7b5
The notes of Abm7b5 are Ab (root), Cb (minor third), Ebb (diminished fifth) and Gb (minor seventh). In scale degrees above the root, the formula is 1 – b3 – b5 – b7. It is a half-diminished chord (m7b5): a diminished triad with a minor seventh, dark and tense but less unstable than the fully diminished chord.
Abm7b5 has 3 common voicings, based on the E, D and A shapes of the CAGED system. There are 31 more voicings sorted by difficulty; use the viewer switches to add inversions and stretches. Another way to write Abm7b5 is G#m7b5 (the same piano key, with a different name). The usual choice is G#m7b5.