Watch the C minor 6/8 Vamp: 1 online guitar lesson by Carl Verheyen from S.W.A.T. Sessions: Jazz Rock
In playing the motif I used here, I was inspired by John Coltrane's solo on a song called "Lament". He plays eight bar phrases, and because he's playing saxophone and has to take a breath, the next phrase is always a little more "gnarly". Each phrase gets bigger and faster for 'Trane. I try to build my solos in a similar way.