Any metalheads in the audience? Oh there you are. Check out this wonderful BBC4 documentary on the rise (and fall?) of British Heavy Metal music, which aired on March 5th, 2010. Part One:
Exclusive pictures of the remainings of the Montreux Casino taken on the next day of the fire (december 1971) at montreuxmusic.com; with comments by the Deep Purple and FZ, plus 2 videos. Found on the Idiot Bastard’s page.