A flat half-diminished piano chord - Abm7b5

The A flat half-diminished chord is a 4-note chord consisting of the notes Ab, Cb, Ebb and Gb.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Abm7b5.

Interactive piano diagram for the A flat half-diminished chord

Piano keyboard displaying the A flat half-diminished chord with the notes CbBG#AbDF#Gb

Reduced chords

Chords that are a subset of Abm7b5. These contain less notes but all of them are included in Abm7b5.

Scales with Abm7b5

Below you find all scales that include Abm7b5:

  • minor blues
  • locrian
  • locrian pentatonic
  • super locrian pentatonic
  • altered
  • locrian #2
  • locrian 6
  • dorian #4
  • hungarian major
  • flamenco
  • bebop locrian
  • half-whole diminished
  • composite blues
  • messiaen's mode #3
  • chromatic

A flat half-diminished piano chord chart image

In case you prefer a non-interactive variant of the chord chart, we've embedded a PNG image below that shows the notes for the the Abm7b5 chord. Feel free to save or share the image as needed.

Piano chord chart for the A flat half-diminished chord (Abm7b5). The notes Ab, Cb, Ebb and Gb are highlighted.