The Old Grey Whistle Test presented a special showcase of Reggae music to a rather restrained audience of twenty-somethings at the Edinburgh Festival. It was an audacious move at a time of long hair, flared trousers, Heavy Metal and Prog Rock, and though the presentation looks uncannily like a Butlin’s stage show, this is an important and historic concert, as it brought together some of the original Trojan artists who helped reggae crossover from Jamaican dance halls to UK chart success.