The Progressives

Genesis, Yes, Jethro Tull, Pink Floyd, Van Der Graaf Generator, King Crimson, Area, Le Orme, Banco del Mutuo Soccorso, Peter Hammill, Steve Hackett, Camel, Soft Machine, Robert Wyatt, ELP, PFM, Gentle Giant, Alan Sorrenti, Stormy Six, Queen (ONLY the first two). Well, 5?