| MAAZEL, LORIN VARENCOVE | Estados Unidos | 06-03-1930 | |
| MACDOWELL, EDWARD | Estados Unidos | 18-12-1860 | 23-01-1908 |
| MACHAUT, GUILLAUME | Francia | h.1300 | h. 1377 |
| MACIAS ALONSO, ENRIQUE X | España | 1958 | 04-11-1995 |
| MACMILLAN, JAMES | Escocia | 1959 | |
| MAGNARD, ALBERIC | Francia | 09-06-1865 | 03-09-1914 |
| MAHLER, ALMA | Austria | 1879 | 1964 |
| MAHLER, GUSTAV | Austria | 07-07-1860 | 18-05-1911 |
| MALIPIERO, GIAN FRANCESCO | Italia | 18-03-1882 | 01-08-1973 |
| MANCHICOURT, PIERRE DE | Francia | h. 1510 | 05-10-1564 |
| MARCELLO, ALESSANDRO | Italia | 1684 | 1750 |
| MARCO, TOMAS | España | 12-09-1942 | |
| MARCUS, ELISABETH | |||
| MARENZIO, LUCA | Italia | h. 1553 | 1599 |
| MARKEVICH, IGOR | Italia | 27-07-1912 | 07-03-1983 |
| MARSHALL, FRANK | |||
| MARTIN, FRANK | Suiza | 15-09-1890 | 21-11-1974 |
| MARTINU, BOHUSLAV | Chequia | 08-12-1890 | 28-08-1959 |
| MARTUCCI, GIUSEPPE | Italia | 06-01-1856 | 01-06-1909 |
| MASON, DANIEL GREGORY | Estados Unidos | 20-11-1873 | 04-12-1953 |
| MASSENET, JULES-EMILE | Francia | 12-05-1842 | 13-08-1912 |
| MATSUMURA, TEIZO | Japón | 15-01-1929 | |
| MATTHEWS, COLIN | Inglaterra | 1946 | |
| MAW, NICHOLAS | Inglaterra | 05-11-1935 | |
| MAYER, JOHN | Inglaterra | 28-10-1930 | |
| MAYR, JOHANN SIMON | Italia | 14-06-1763 | 02-12-1845 |
| MCPHEE, COLIN | Canada | 15-03-1900 | 07-01-1964 |
| MEALE, RICHARD | Australia | 24-08-1932 | |
| MEDTNER, NIKOLAY KARLOVICH | Rusia | 05-01-1880 | 13-11-1951 |
| MEHUL, ETIENNE-NICOLAS | Francia | 22-06-1763 | 18-10-1817 |
| MENDELSSOHN BARTOLDY, FELIX | Alemania | 03-02-1809 | 04-11-1847 |
| MENDELSSOHN-HENSEL, FANNY | Alemania | 14-11-1805 | 14-05-1847 |
| MENOTTI, GIAN CARLO | Italia | 07-07-1911 | |
| MERIKANTO, AARRE | Finlandia | 29-06-1893 | 29-09-1958 |
| MERIKANTO, OSKAR | Finlandia | 05-08-1868 | 17-02-1924 |
| MERTZ, JOHANN KASPAR | Hungria | 1806 | 1856 |
| MESSIAEN, OLIVER | Francia | 10-12-1908 | 27-04-1992 |
| MEYERBEER, JAKOB | Alemania | 05-09-1791 | 02-05-1864 |
| MIASKOVSKY, NIKOLAI | Rusia | 20-04-1881 | 08-08-1950 |
| MILHAUD, DARIUS | Francia | 04-09-1892 | 22-06-1974 |
| MIRA FORNES, RAFAEL ANGEL | España | 1951 | |
| MIRZOIAN, EDVARD MIKHAILOVITCH | Armenia | 12-05-1921 | |
| MIYOSHI, AKIRA | Japón | 10-01-1933 | |
| MOLEIRO, MOISES | Venezuela | 1904 | 1979 |
| MOMPOU, FEDERIC | España | 16-04-1893 | 30-06-1987 |
| MONTECLAIR, MICHEL PIGNOLET DE | Francia | 04-12-1667 | 22-09-1737 |
| MONTEVERDI, CLAUDIO | Italia | 15-05-1567 | 29-11-1643 |
| MONTSALVATGE, XAVIER | España | 11-03-1912 | |
| MORALES, CRISTOBAL DE | España | h. 1500 | 1553 |
| MORENO TORROBA, FEDERICO | España | 03-03-1891 | 12-09-1982 |
| MORLEY, THOMAS | Inglaterra | h. 1557 | 1602 |
| MORRIS, R.O. | Inglaterra | 03-03-1886 | 14-12-1948 |
| MOSOLOV, ALEXANDER VASILIEVICH | Rusia | 29-07-1900 | 11-07-1973 |
| MOSZKOWSKI, MORITZ | Alemania | 23-08-1854 | 04-03-1925 |
| MOTTL, FELIX | Austria | 24-08-1856 | 02-07-1911 |
| MOURANT, WALTER | Estados Unidos | 1910 | |
| MOZART, LEOPOLD | Austria | 14-11-1719 | 28-05-1787 |
| MOZART, WOLFGANG AMADEUS | Austria | 27-01-1756 | 05-12-1791 |
| MUFFAT, GEORG | Alemania | 01-06-1653 | 23-02-1704 |
| MULLINAR, MICHAEL | Inglaterra | ||
| MUSSORGSKY, MODEST PETROVITCH | Rusia | 21-03-1839 | 28-03-1881 |
| MYSLIVECEK, JOSEF | Chequia | 09-03-1737 | 04-02-1781 |
