The Gb9 sus 4 chord (Gb9 suspended 4, or Fb/Gb) contains the notes Gb, Cb, Db, Fb and Ab. It can be thought of as a Gb9 chord with a 4th (instead of a 3rd) or an Fb chord (same as E) with a Gb in the bass.

10 Ways To Play The Gb9 Sus 4 chord

If you’ve come to this page just to view some chord diagrams for Gb9 Sus 4 (Fb/Gb), here they are.

Gb9 Sus 4 Chord 10 Shapes