Tribute bands covering progressive rock artists. Other musical acts covering progressive rock artists. Progressive rock artists covering other types of music. Artists for this episode include: Bill Rhodes, Emerson, Lake and Powell, Token Angle, Keith Emerson Band, Fleesh, Dweezil Zappa/Tony Kaye/Aynsley Dunbar, Egg, The House Of Usher, John Wetton, Trans-Siberian Orchestra, Regenesis, Seven Virgins & A Mule, Works III.