Mar 3, 2015 Good points, although I'm not sure I agree 100%. Only One felt like Kanye writing to cater to a gentler, Paul-inspired song, but not sure I see McCartney actually contributing. Could be wrong. Understated is fine, and you're right -- the endorsement is huge... from a PR standpoint. Musically, I think the tracks have been underwhelming as of now.
Mar 3, 2015 My impression from the tracks is that Paul freestyled some chord riffs on the organ and guitar while Kanye messed around with melodies. That's the vibe I've gotten from Only One and FourFiveSeconds anyways.