Sonny Rollins is renowned for his unique approach to thematic development, which is somewhat similar to the way Beethoven worked in a piece such as his famous Fifth Symphony. His solo on his original tune “Blues for Philly Joe” (named for drummer Philly Joe Jones) is a perfect example of this type of development. Parts of the solo are so rhythmically driven, one can imagine that Rollins was consciously emulating the way a jazz drummer would approach a solo. Here is a great blues lick that works well over the IV chord (bars 62-63). Doesn’t it sound like something Cannonball (a great blues master) might have played? Try playing it in all 12 keys. If you can’t figure out how to transpose it, leave a comment below or email me for a free copy of the figure in all 12 keys.