 When he was eighteen, Roberts and a friend were playing at a late night review at the 1964 Edinburgh Festival.During his time there he not only met Vivian Stanshall of the Bonzo Dog Doo-Dah Band, with whom he would later play in the band Grimms, but also the Liverpool comedy trio The Scaffold, whose members included poet Roger McGough, John Gorman and Paul McCartney’s brother, Mike McGear.At the same time he also met Liverpool poet Adrian Henri, with whom he would subsequently work sporadically, and with whom he would make his first album in 1967.