Buddy Holly was killed at 22 when the plane he was travelling in crashed on 3 February 1959. Although this was less than two years after Holly's first hit record, Don McLean described this as 'the day the music died.' But Sonny Curtis, Holly's friend and musical colleague, told us that the music didn't die, because 'Buddy Holly lives every time you play rock'n'roll.' Fifty years after Holly's death, his lasting influence is clear; a musical based...