Genesis has been doing medleys of some songs in one form or another since 1976. Here are some of the better ones available on Youtube. 1977 “The Lamb Lies Down on Broadway” ” – The Musical Box (Closing section)” 1978 “Dance on a Volcano” – Drum Duet – “Los Endos” 1982 “In the Cage” – “The Cinema Show” – “Riding the Scree (Teaser)” – “The Cinema Show (Reprise)” – “The Colony of Slippermen (c) Raven” – “Afterglow” 1983 Old…