_:|__F__|__Gb_|_____|__Ab_|_____|_____|__B__|_____|__Db_|_____|_____|_____| B:|_____|__Db_|_____|_____|_____|__F__|__Gb_|_____|__Ab_|_____|_____|__B__| _:|__Ab_|_____|_____|__B__|_____|__Db_|_____|_____|_____|__F__|__Gb_|_____| _:|_____|_____|__F__|__Gb_|_____|__Ab_|_____|_____|__B__|_____|__Db_|_____| _:|_____|__B__|_____|__Db_|_____|_____|_____|__F__|__Gb_|_____|__Ab_|_____| _:|__F__|__Gb_|_____|__Ab_|_____|_____|__B__|_____|__Db_|_____|_____|_____| 0 1 2 3 4 5 6 7 8 9 10 11 12
See all notes of the G flat major11 chord ( Gb B Db F Ab ) on the fretboard.
Figure out your favourite way to play the Gb major11 by toggling the notes on the fretboard.
The Gb is a flat note. flat notes lie in between the whole notes.