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Ohana, Maurice (1913-1992)
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Olli, Kalevi, (b.1951)
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Onttonen, Esa
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Orthodox chant
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Ortiz, Diego (1510-1570)
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Oulman, Alain (1928-1990)
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Pappismunkki (Arkkipiispa) Paavali (1914-1988)
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Pascal, Milton (1908-1976)
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Pentti, Vesa (1930-2004)
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Pereyra, Eduardo (1900-1973)
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Pergolesi, Giovanni Battista (1710-1736)
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Perotin (1160-1220)
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Perucona, Maria Xaveria (1652-1709)
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Peskin, Vladimir (1906-1988)
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Pesola, Väinö (1886-1966)
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Pethman, Esa (b.1938)
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Piae Cantiones -laulukokoelma (-1582)
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Piazzolla, Astor (1921-1992)
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Picchi, Giovanni (1572-1643)
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Pierpoint, James (1822-1893)
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Piispanen, Pasi (b.1966)
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Piispanen, Ulla (b.1963)
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Piitulainen, Jouko (1936-2016)
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Pilss, Karl (1902-1979)
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Pimentel, Joaquim (1910-1978)
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Pinel, Julie
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Piratini, Caco Velho
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Pohjannoro, Hannu (b.1963)
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Pohjola, Seppo (b.1965)
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Polojärvi, Ari
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Porsile, Giuseppe (1680-1750)
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Prokofiev, Sergei (1891-1953)
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Purcell, Henry
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Puurtinen, Aija
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R. Raala [pseud. Berndt Sarlin]
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Raitio, Väinö (1891-1945)
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Ramirez, Ariel (1921-2010)
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Rangström, Ture (1884-1947)
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Raninen, Aarno (1944-2014)
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Ranta, Sulho (1901-1960)
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Rauhala, Ville (b.1976)
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Rautavaara, Tapio (1915-1979)
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Ravel, Maurice (1875-1937)
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Re, Benedetto
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Rechberger, Herman (b.1947)
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Reger, Max (1873-1916)
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Regondi, Guilio (1822-1872)
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Respighi, Ottorino (1879 – 1936)
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Rheinberger, Joseph (1839-1901)
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Riccio, Giovanni Battista (1570-1621)
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Richafort, Jean (1480-1547)
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Richter, Franz Xaver (1709-1789)
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Riley, Terry (b.1935)
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Rimsky-Korsakov, Nikolai (1844-1908)
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Rissanen, Aki (b.1980)
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Rissanen, Antti (b.1975)
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Rissanen, Säde (b.1965)
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Ritter, August Gottfried (1811-1885
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Rodrigo, Joaquin (1902-1999)
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Rodriguez, Arsenio (1911-1970)
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Rognoni, Francesco (1580-1630)
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Roihuvuo, Leena (b.1962)
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Rollins, Sonny (b.1930)
