Watch the Shades Of The Duke: Solo 1 online guitar lesson by David Blacker from Swing Blues Survival Guide: Lead

The key take-aways from this piece are the melodic riffs that outline the change from I to IV in the first two measures. The use of the 7b9 over the second measure of the IV chord is a key element, and the transitional riff in the 7th & 8th measure.