This group composition about waiting for someone named Gloria is actually "The Painter
" with an entirely different set of lyrics; leaving aside parodies, which go back a long, long way, this is something not exactly unknown, for example the UFO classic "Rock Bottom
" was recorded initially with an entirely different set of lyrics, and Al Stewart has done this with a number of his songs.
"The Painter" was the 5th
track on the eponymous 1969 album, but although "Hey Bop A Re Bop" was recorded at the BBC on January 14 the same year, it did not see the light as a commercial release until 2000 when it was included on the Remastered second album The Book Of Taliesyn
Sadly, like not a few other songs it includes the horrible solecism "try and" instead of "try to."
Alexander - London, England