Dictionary: Gb Major Pentatonic Scale

The G-flat major pentatonic scale is convenient to use for improvising solos and composing melodies over an G-flat major chord progression, especially if you are unsure whether to use the Lydian, Ionian, or Mixolydian mode at any given moment.  It's almost foolproof in that manner.

Dictionary: F# Blues Scale

When you add a diminished 5th note to the F-sharp minor pentatonic scale (the C note, in this case), you now have the F-sharp blues scale.  Try it over F-sharp.  Any F-sharp.  You may like the results.