Joshua Rifkin (born April 22, 1944) is an American conductor, pianist, and musicologist. He is currently a professor of music at Boston University. As a performer, he has recorded music by composers from Antoine Busnois to Silvestre Revueltas; as a scholar he has published research on composers from the Renaissance to the 20th century.
Rifkin is known among classical musicians for his theory which says that most of Bach's choral works were sung with only one singer per choral... meer