30. Paul McCartney – Secret Friend (1980)
McCartney’s penchant for the musical avant garde dates back to the mid-60s (before John Lennon’s, as he’s often keen to point out). You didn’t hear much from leftfield Macca in the 70s, but he reappeared on Secret Friend, an outtake from McCartney II that sounds, extraordinarily, like abstract, ageless, Balearic techno 10 years early.
