Rarely has one irate punter so affected a band’s trajectory. Without the anger of the man who went to see the Moody Blues at the Fiesta Club in Stockton in 1966, the band would never have reinvented themselves, never have transformed into psychedelic pioneers, and next month they would not be travelling to America to be inducted into the Rock and Roll Hall of Fame, the honour bestowed annually upon those the US music business deems the most significant artists of all.