| LACHENMANN, Helmut (1935) | LACORCIA, Scipione (fl.1590 - 1620) | LALO, Edouard (1823 - 1892) | LAMBERT, Michel (1610 - 1696) | LANDINI, Francesco (ca.1325 - 1397) | LANNER, Joseph (1801 - 1843) | LANTINS, Hugo de (fl. 1420 – 1430) | LARCHER, Thomas (1963) | LARY 7 (1956) | LASSUS, Orlando (1532 - 1594) | LAURO, Antonio (1917 - 1986) | LEBERTOUL, Franchois (ca.1400 - ca.1450) | LECLAIR, Jean-Marie (1697 - 1764) | LEEUW, Reinbert de (1938 - 2020) | LEEUW, Ton de (1926 - 1996) | LEGRANT, Jean (fl. 15th century) | LEGRENZI, Giovanni (1626 - 1690) | LENTZ, Daniel (1942) | LEONCAVALLO, Ruggiero (1857 - 1919) | LEONINUS, Magister (Léonin) (fl.1163 - 1190) | LESCHETITZKY, Theodor Hermann (1896 - 1948) | LESCUREL, Jehan de ( ? - 1304) | LHERITIER, Jean (ca.1480 - ca.1551) |
| | LIADOV, Anatol (1855 - 1914) | LIGETI, György (1923 - 2006) | LIMMER, Franz (1808 - 1857) | LINDBERG, Magnus (1958) | LISZT, Franz (1811 - 1886) | LLOYD, George (1913 - 1998) | LOBO, Alonso (ca.1555 - 1617) | LOCATELLI, Pietro (1695 - 1764) | LOEB, David (1939) | LÓPEZ BUCHARDO, Carlos (1881 - 1948) | LOQUEVILLE, Richard (13?? - 1418) | LORENZINI (2nd half 16th C.) | LOTHAR, Mark (1902 - 1985) | LOTTI, Antonio (1667 - 1740) | LUCIER, Alvin (1931) | LULLY, Jean-Baptiste (1632 - 1687) | LUPRANO, Philippus de (ca.1474 - 1520) | LUPUS, Johannes? (fl. 16th century?) | LUTOSLAWSKI, Witold (1913 - 1994) | LUZZASCHI, Luzzasco (1545 - 1607) | LYAPUNOV, Sergey (1859 - 1924) | LYMBURGIA, Johannes de (fl. 1400 - 1440) | |
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