2/6. Russell Davies explores the ancient art of close-harmony singing in its many variations, including barbershop, jazz, gospel and doo-wop, as sung by sacred, commercial, amateur and professional groups (church choirs, Welsh male voice choirs, session singers and backing vocalists). Featured acts include the Manhattan Transfer, Take Six, New York Voices, the Four Freshmen, the Hi-Los and the Swingle
Singers. This edition draws links between early polyphonic sounds and today's vocal-group singing. Producer Graham Pass