All My Yesterdays:Progressive rock a genre formed out of a creative surge in the late Sixties and throughout the Seventies originated and flowered most spectacularly in the UK. Made by young musicians for a young audience, prog music looked towards new horizons by synthesising rock, jazz, folk, classical and other styles. While prog has always divided critical opinion, in its heyday it had a large and devoted fanbase, and the era s biggest acts from Pink Floyd to