Here’s a lick that works well over both the I VI ii V section of rhythm changes and the ii V leading to the IV chord in bars five and six of the progression. Theres are a lot of reasons why this works but it’s more fun to play it than it is to dissect and analyze it. I was kind of surprised to see the relationships between the two sections. I sure hadn’t thought about it before! Maybe this will open up some new approaches to playing over rhythm changes in the future. Enjoy and let me know if you have any thoughts about it.