After 50 years collecting records, Gary Blue has over 11,000 albums. It’s time to have another festive rummage through the cabinet of curiousities. He’s found a 1969 non-album track by Led Zeppelin and Prince’s 2nd single from 1980. His debut is a little too rude for radio. There’s a rare song from Motorhead, a back-to-back featuring Joni Mitchell and a single from the man who wrote the music for Wonka. But no blues.