Due to the quality, this may well be of interest only to Spirit aficionados.
However, diehard fans of Spirit/Randy California/Ed Cassidy should, I hope, find something of interest in some of the rare/obscure material contained in the film.
"Night of the guitars" concert in Kentish Town, London. The "singer" is not Trower's singer - he was sort of a "house band" singer/keyboard player, hired for the night by the event organisers. Robin's on top form though.
Apologies for it being in four parts, but YouTube does not allow more than ten minutes per video. This is part one (of four) of the song "Dazed And Confused" from the concert at Earls Court, London on 24th May 1975.
Virtually a blues guitar masterclass. Johnny Winter, jamming with the bassist Randy Jo Hobbs (1948-1993) in Detroit in 1971. The song was written by Charles Segar and Big Bill Broonzy in about 1945.