The following diagram displays all the places where the note Gb (G flat) can be played on the guitar fretboard, within the first 15 frets.

The Gb note can be played on the guitar on the following strings/frets:
- On the 2nd fret and on the 14th fret of the 6th string.
- On the 9th fret of the 5th string.
- On the 4th fret of the 4th string.
- On the 11th fret of the 3rd string.
- On the 7th fret and on the 14th fret of the 2nd string.
- On the 2nd fret and on the 14th fret of the 1st string.