The 70s were an incredibly fertile time for music. The decade began with the earlier purveyors of hard rock and metal – Deep Purple, Black Sabbath et al – and ended in a similar fashion with bands like Iron Maiden and Saxon spearheading what had been dubbed the New Wave of Heavy Metal. Somewhere between the two metal-oriented goalposts, funk begat disco and progressive rock roamed the landscape like a giant self-indulgent behemoth; punk inspired a generation to create DIY sounds and the likes of ELO, David Essex, 10cc and Pilot were at the forefront of pop perfection. David Bowie and Marc Bolan bought androgyny into the mainstream and Roxy Music looked and sounded like they’d been dropped to earth by aliens. Looking back – maybe with some rose-tinted glasses – the 1970s seemed to be a time when new musical ground was being broken month after month.