O

OBRECHT, Jacob (1457/8-1505)
OCKEGHEM, Johannes (c. 1410-1497)
OFFENBACH, Jacques (1819-1880)
OHANA, Maurice (1913-1992)
OHGURI, Hiroshi (1918-1982)
OHKI, Masao (1901-1971)
OHZAWA, Hisato (1907-1953)
ORBON, Julian (1925-1991)
ORDONEZ, Karl von (1734-1786)
ORFF, Carl (1895-1982)
ORNSTEIN, Leo (1892-2002)
ORR, Buxton (1924-1997)

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