Composers
All
Ballet
Cantata
Chamber
Choral Music
Concerto
Instrumental
Madrigal
Mass
Music for lute, mandolin and guitar
Opera
Opera buffa
Operetta
Oratorios
Orchestral
Organ
Piano music
Quartet
Quintet
Sacred music
Singspiel
Sonata
Suite
Symphony / Symphonic music
Violoncello music
Vocal & Symphonic
Vocal and instrumental music
A
Alfredo Rolando Ortiz
(1946 )
D
Diego Ortiz
(1510 - 1570)
G
George Onslow
(1784 - 1853)
J
Jacques Offenbach
(1819 - 1880)
James Oswald
(1710 - 1769)
L
Leo Ornstein
(1893 - 2002)
M
Messiaen Olivier
(1908 - 1992)
O
Ole-Henrik Moe
(1920 - 2013)
Orlando Gibbons
(1583 - 1625)
Oscar Esplá
(1886 - 1976)
Othmar Schoeck
(1886 - 1957)
Ottorino Respighi
(1879 - 1936)
P
Pauline Oliveros
(1932 - 2016)
T
