BYF3856073: John Cage, Los Angeles, 1987 (photo) / Bridgeman Images

BYF3856412: Matthus Siegfried, 1990 (photo) / Bridgeman Images

BYF3856516: Mark-Anthony Turnage composing, London, 1998 (photo) / Bridgeman Images

BYF3871390: Portrait of Dane Rudhyar, 1975 (photo) / Bridgeman Images

BYF3872841: Lou Harrison, 1985 (photo) / Bridgeman Images

BYF3872856: Merce Cunningham, 1989 (photo) / Bridgeman Images

BYF3872888: Oliver Knussen rehearsing, 1992 (photo) / Bridgeman Images

BYF3872896: Boulez Pierre, 1992 (photo) / Bridgeman Images

BYF3872984: Birtwistle Harrison, 1995 (photo) / Bridgeman Images

BYF3872989: Birtwistle Harrison, 1995 (photo) / Bridgeman Images

BYF3870481: Conlon Nancarrow, 1985 (photo) / Bridgeman Images

BYF3869687: John Adams, Los Angeles, 1999 (photo) / Bridgeman Images

BYF3869689: Eotvos Peter, 1999 (photo) / Bridgeman Images

BYF3869694: John Adams, Los Angeles, 1999 (photo) / Bridgeman Images

BYF3869697: John Adams, 1999 (photo) / Bridgeman Images

BYF3875613: Aaron Jay Kernis Los, 1989 (photo) / Bridgeman Images

BYF3876127: George Crumb during Los Angeles Philharmonic. New Music Group concert, 2000 (photo) / Bridgeman Images

BYF3876178: George Crumb during Los Angeles Philharmonic. New Music Group concert, 2000 (photo) / Bridgeman Images

BYF3839804: Marco Stroppa, Salzburg, 1995 (photo) / Bridgeman Images

BYF3839865: Zimmermann Walter, 1990 (photo) / Bridgeman Images

BYF3839791: Merce Cunningham, 1995 (photo) / Bridgeman Images

BYF3853331: Thomas Adès in London, 1997 (photo) / Bridgeman Images

BYF3853337: Thomas Adès, 1997 (photo) / Bridgeman Images

BYF3853339: Thomas Adès in Los Angeles, 1997 (photo) / Bridgeman Images

BYF3853324: Earle Brown, 1998 (photo) / Bridgeman Images

BYF3851958: Harrison Birtwistle, 1993 (photo) / Bridgeman Images

BYF3851257: Bussotti Sylvano, 1991 (photo) / Bridgeman Images

BYF3851289: Portrait of Harold Budd, 1984 (photo) / Bridgeman Images

BYF3848677: Harry Partch, 1972 (photo) / Bridgeman Images

BYF3848679: Harry Partch, San Diego, 1972 (photo) / Bridgeman Images

BYF3848705: Harry Partch (photo) / Bridgeman Images

BYF3848712: Ned Rorem, 1987 (photo) / Bridgeman Images

BYF3848716: Partch Harry, 1972 (photo) / Bridgeman Images

BYF3848717: Paul Lansky, Princeton, New Jersey, USA, 1991 (photo) / Bridgeman Images

BYF3848739: Harrison Birtwistle & Alfred Brende, 1994 (photo) / Bridgeman Images

BYF3848757: Wolfgang Rihm in, 1990 (photo) / Bridgeman Images