Motorhead died on Christmas day. A teenage schoolfriend of Zappa in the late 1950s, swapping records and performing in early bands such as The BlackOuts and The Omens. He moved into Zappa’s studio with Zappa living there for six months in the early 1960s and became a musician/roadie with The Mothers.
Here he is (in sunglasses) blowing up a storm and shaking his tambourine with The Mothers in 1968:
On the 24th June 1966 The Mothers were supporting Lenny Bruce. Bruce was not on his best form and would be dead by August. In 1969 Zappa would release an unedited recording of Bruce at the December 1965 Berkeley Concert (This has subsequently been reissued several times and can be found on Spotify). Zappa was a fan of Sea Shanties and had owned A.L. Lloyd and Ewan MacColl‘s Blow Boys Blow (another Spotify link). He had given the record to Captain Beefheart which led to a long running dispute between the two as to whether it was a gift or a loan. The record included the song The Handsome Cabin Boy
which Zappa often used in concerts as the theme for an improvisation: