MUSIC AND MALE LABOUR MIGRATION Nightsong: Performance, Power, and Practice in South Africa. By VEIT ERLMANN with an introduction by JOSEPH SHABALALA. Chicago: University of Chicago Press, 1996. Pp. xxv+446. £59.95; $75 (ISBN 0-226-21720-5); £19.95; $24.95, paperback (ISBN 0-226-21721-3); video £39.95; $49.95.