G flat diminished seventh piano chord - Gbdim7

The G flat diminished seventh chord is a 4-note chord consisting of the notes Gb, Bbb, Dbb and Fbb.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Gbdim7.

Interactive piano diagram for the G flat diminished seventh chord

Piano keyboard displaying the G flat diminished seventh chord with the notes A F# Gb B# C D# Eb

Reduced chords

Chords that are a subset of Gbdim7. These contain less notes but all of them are included in Gbdim7.

G flat diminished seventh 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 Gbdim7 chord. Feel free to save or share the image as needed.

Piano chord chart for the G flat diminished seventh chord (Gbdim7). The notes Gb, Bbb, Dbb and Fbb are highlighted.