In this archival film, Boston's new music ensemble, Collage New Music (founded in 1971) rehearses British composer Peter Maxwell Davies' Eight Songs for a Mad King (1969) in a Boston Symphony Hall rehearsal room. Ensemble: Phil Kelsey, narrator Paul Fried, flute Phil Viscuglia, clarinet Ron Knudsen, violin Ron Feldman, cello Chris Kies, piano Frank Epstein, percussion

This is an excerpt from Gunther Schuller's six-part series entitled Changing Music. Frank Epstein performs two pages of Karlheinz Stockhausen's iconic Zyklus for solo percussion.