Cool Riffs That Sound Great over Each Portion of the Blues Progression. If you're a guitarist who's learned the pentatonic scale up and down the neck but still asks, During a solo, how do I know what to play and when to play it?, then this book is for you. Its goal is to give you a variety of great blues licks that you can put together bar by bar to create a complete blues solo. Covers: the 12-bar blues progression, cool riffs, complete solos and more. The CD features Music Minus Me tracks that let you play along as the featured soloist.. Format: Vocal score. Classification: Methods; Studies; Musicianship. Scoring: Solo. Notation: Tab. Pages: 32. Media: Printed music with CD(s). Genre: Blues.