Watch the Blues By II V online guitar lesson by Sheryl Bailey from Essentials: Bebop Etudes

When you see a dom7, add a II in front of it: F7 becomes Cmin7 F7, Bb7 becomes Fmin7 Bb7, etc. You'll hear throughout this solo that I've used that sound on each dom7. You'll also hear that I've created II V's off of the "sub V7" to create a more "outside" sound. You can hear all the great jazz improvisers make use of both of these sounds on a blues.