Mode 4 of Db Melodic Minor Scale

Gb Lydian Dominant

Space plays and stops
Notes
GbAbBbCDbEbFb
Steps
W W W H W H
Intervals
2 2 2 m2 2 m2

The melodic minor scale is similar to the major scale with only one difference – it uses a minor third instead of a major third.

Gb Lydian Dominant is the 4th mode of the Db Melodic Minor Scale: its notes, Db Eb Fb Gb Ab Bb C, played from Gb.

Chords it fits