It’s being tagged as the “last great” Beatles song, but it’s nothing of the sort. Yoko Ono gave McCartney a Lennon demo called “Now and Then” in 1994 as part of the Beatles Anthology project. McCartney is just now completing it with help from archived guitar parts by the late George Harrison and current drumming by Ringo Starr. To call this a Beatles song is beyond patronizing. But the marketing machine behind it will cement that thought in the public’s consciousness, and everyone involved will invariably make a mint. To hell with credibility.