Suggestions for improvisation:
This is a funky bass driven jam track in E.
Try E minor Pentatonics for the main section.
During the |Bb |A G13 | turnaround section, play Bb, A, and G Major Pentatonics.
Also try Major or dominant 7th arpeggios for those chords. (R 3 5 b7).
Video Instructions: Shut You Mouth Video Instruction