Ab-maj7 Diminished
The Ab-maj7 chord is built from the notes Ab – Cb – Ebb – G.
Piano sound loads on first tap.
Also known as
Ab-maj7b5Abdim(maj7)Abdimmaj7Abm(b5)maj7Abm(maj7b5)Abm7b5(maj7)
Chord tones, one by one
AbRoot
Root
The fundamental note the chord is built on — Ab.
CbThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
EbbFifth
Diminished fifth (♭5)
Six semitones — a flat fifth. Creates instability, typical of m7♭5 and diminished chords.
GSeventh
Major seventh
Eleven semitones — a lush, jazzy seventh just below the octave (maj7).
🎼 Related scales
🎹 Modal analysis
This chord implies the Whole-half diminished scale.
🎸 Genres
Bebop jazz · Hard bop · Gypsy jazz