They were the backing group for Lu Walters, whose real name was Walter Eymond although everyone knew him as Wally. Walters was the bassist in Rory Storm's band The Hurricanes, which also featured Starr on drums.
We also recorded with Lou Walters. He was Rory Storm's bass player. He was a guy who thought he was a singer. He paid to have the record made himself, as we had done in Liverpool with That'll Be The Day.
The recording was made in the small Akustik studio by the railway station at Kirchenallee 57, Hamburg, where members of the public were able to record messages for family and friends and have them pressed to 78rpm acetate discs. The discs had spoken word advertisements on the b-sides.
In addition to Summertime, Starr, Walters, Byrne and Brian made recordings of Fever and September Song. Nine copies of Summertime were pressed onto acetate disc, though none are known to have survived.
The Beatles are said to have wanted to record some songs on their own - though whether this would have been with Sutcliffe and Starr is unknown. Furthermore, their drummer at the time, Pete Best, was not present. Either way, Williams feared they would be late for their 8pm start at the Kaiserkeller, and so put a stop to the session.