"Major Blue" is an Ionian progression in the key of E. The chords are E - Esus4 - C#mi(add2) – A(add2) - E. You could name this progression using Roman numerals too...I - VI - IV - I.
This is a really nice groove reminiscent of Motown/R&B tunes of yesteryear. You'll notice the cheeky little chord riff as a turnaround back to our tonal center of the E chord. Check it out and try to make it smooth and laid back in the pocket. Solo over this progression using the E major scale and phrase your ideas towards the resolution point.