A flat diminished piano chord - Abdim

The A flat diminished chord is a 3-note chord consisting of the notes Ab, Cb and D.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Abdim.

Interactive piano diagram for the A flat diminished chord

Piano keyboard displaying the A flat diminished chord with the notes Ab, Cb, D Cb B G# Ab D

A flat 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 Abdim chord. Feel free to save or share the image as needed.

Piano chord chart for the A flat diminished chord (Abdim). The notes Ab, Cb and D are highlighted.