This is by the way an approach that I learned from American Jazz Pianist Barry Harris, you should check him out! His workshops are very good and he is the real deal when it comes to bebop! So now that we have some scales and arpeggios to use on our progression we can start looking at some of the lines you can make with that. A Rhythm changes solo. There is of course, the general theory that from an improvised line standpoint there is only two generalized scalar relationships to the harmony: Tension, represented by the diminished built on the natural 7 (or 3rd of V), and the resolution (whether Major or Minor).