For those that are still interested, especially @Omar This one is based on Major Circle chord progression: I-IV-vii*-iii-vi-ii-V-I. In C: Cmaj7-Fmaj7-Bm7b5-Em7-Am7-Dm7-G7-Cmaj7. The Minor Circle progression is this: i-iv-VII-III-VI-ii*-V-i. In Am : Am7-Dm7-G7-Cmaj7-Fmaj7-Bm7b5-Em7-Am7 The form is A-A-B-A (thanks @dogletnoir ) major, major, relative minor, major, repeated 3 times. The aim is to play a rhythm track, play a melody, play a solo, return to the melody. Simple.