Dictionary: Gb Major Scale

From this six-flat scale, we can derive the modes Gb Ionian, Ab Dorian, Bb Phrygian, Cb Lydian, Db Mixolydian, Eb Aeolian, and F Locrian.  The Gb major Scale is enharmonic with the F# major scale, and the Cb note/chord is the same pitch as the B note/chord.  In the table below, the logical triads are to the left, and various ideas to spice up your chord progressions are to the right:

Gb	Ebm	Fdim	Gbaug
Cb	Abm	Cbm	Abdim
Db	Bbm	Bb	Ddim