Товарищи форумчане! Похоже что я нашёл (с маленькой помощью моих друзей с www.beatles.ru).
На http://www.allmusic.com/cg/amg.dll?p=amg&uid=CASS80305170055&sql=A9ev8b5x4tsqk сказано:
McGough & McGear. Одноименный альбом.
Mike McGear (Michael McCartney) это родной брат Paul McCartney. Пол был продюсером этого альбома, а Джими играл в последней вещи "Ex-Art Student" на гитаре (естественно)!!!
McGough & McGear
May 17, 1968 (release) LP Parlophone 7047
Jack Bruce - Bass
Dave Mason - Sitar
Paul McCartney - Producer
Mike McGear - Vocals
Roger McGough - Vocals
Jimi Hendrix - Guitar
Gary Leeds - Drums
Barry Fantoni - Saxophone
Вот некоторое описание альбома:
"Far from being just a Beatles-related curiosity, McGough & McGear is a fine (and rare) album deftly combining poetry, comedy, and a good amount of solid pop-psychedelic rock.
The record also boasted a roster of all-star guests, including, unsurprisingly, Paul McCartney; McCartney's then-girlfriend, actress Jane Asher; Jimi Hendrix, who adds cool psychedelic guitar to "Ex-Art Student"; the other members of the Jimi Hendrix Experience; John Mayall; Zoot Money; Graham Nash; Spencer Davis; ex-Pretty Things drummer Viv Prince; ex-Yardbirds bassist Paul Samwell-Smith; Dave Mason; Gary Leeds of the Walker Brothers; and yet more names that will be known to aficionados of swinging London, like Margaret Asher (Jane Asher's mother) and socialite Prince Stanislaus Klossowiski de Rola. The Beatles' official biographer, Hunter Davies, wrote the liner notes.
The album was largely recorded in the summer of 1967, but not completed and released until the following year. It's been reported that it was intended for issue on the Beatles' new Apple label, but in the end it appeared on Parlophone (the Beatles' standard record company). The album went little noticed, and was only briefly reissued on CD before it went out of print again."
Кажись та заметка в книге Blues Who's Who (см. моё сообщение в форуме за 22 мая 2003) смахивает на правду?..