Watch the Maude online guitar lesson by TrueFire from Play Jazz Guitar 5: Lick Lexicon
Maude - Lick 38 is a video guitar lesson presented by Tom Dempsey and is sourced from 50 Soul Jazz Licks You MUST Know.
Maude here refers to Grant Green's recording of a tune called "Blues In Maude's Flat" which is off an album called "Grantstand". It's just the blues scale! But the way it is played really brings out the sound of the dominant seventh chord. This is a classic sounding Grant Green line.