Brano
Durata
Echoi I
Robert Martin, Raymond DesRoches, Arthur Bloom, Group for Contemporary Music at Columbia University, Charles Wuorinen
Echoi II
Charles Wuorinen, Arthur Bloom, Raymond DesRoches, Robert Martin, Group for Contemporary Music at Columbia University
Echoi III
Charles Wuorinen, Arthur Bloom, Group for Contemporary Music at Columbia University, Raymond DesRoches, Robert Martin
Echoi IV
Robert Martin, Arthur Bloom, Charles Wuorinen, Group for Contemporary Music at Columbia University, Raymond DesRoches