Watch the Fusion Funk G7: 2 online guitar lesson by TrueFire from Play Jazz Guitar 7: Style Variations
Fusion Funk G7: 2 - Overview is a video guitar lesson presented by Carl Verheyen and is sourced from S.W.A.T. Sessions: Jazz Rock.
In this lesson, we'll talk about the diminished scale and it's use over the dominant 7 chord. I believe this is one of the quickest ways to get you into playing over a 7th chord in a more "altered" way.