Back in the early 1990s, Paul McCartney demo’d a song — “Angel In Disguise” — for what was to be Ringo Starr’s 1992 album “Time Takes Time.” It never made the final cut, but a cassette of the demo — with Paul singing in one version and a more-fleshed-out version with Ringo singing — is up for auction. It could be yours for about 20,000 pounds (app. $25,000). If you can’t afford that much, listen here to another song Paul wrote for Ringo, “Private Property” from 1981: