Blues scales Major Major pentatonic Misc. Blues Lydian b7

The 7 modes Ionian Dorian Phrygian Lydian Mixolydian Aeolian Locrian

Minor scales Natural minor Harmonic minor Melodic minor Minor Pentatonic

Lydian b7 scale for guitar

As the name indicates, the Lydian b7 is Lydian scale with a lowered seventh. The Lydian b7 is the fourth mode of the melodic minor scale. The Lydian b7 is great for dominant 7th chords as an alternative to mixolydian.