They lasted only a decade and never lit up the world's charts, but progressive rock connoisseurs always knew what today's audiences are now beginning to discove

Every now and then a band comes along that defies convention, refuses to be pigeon-holed, thumbs its nose at comfy predictability and blows raspberries at comme

Of all of the 'classic' British rockers who came to prominence in the 1960s, only a very few have achieved significant, sustained success through to the present