Motets, Brumel's, 43; Willaert's, 48 Motive, the Walhalla, 377. Mouton, Jean, 45. Mozart, Wolfgang Amadeus, masses of, 80, 92, 95, 103; vocal playing of, 110; his operas, 110, 111, 137; life of, 139, 140; criticism of his work, 140; his piano sonatas, 140, 141; his quartets, 140, 192; a master pianist, 141, 142, 143, 145, 153, 162; his influence on Haydn, 163; symphonies of, 164, 167, 169; his Mannheim band, 164, 165; his extraordinary genius, 164, 165; his style, 165; his notable system, 166; influence of the opera upon, 166; transforms the treatment of the orchestra, 168; his chamber music, 191, 192; his part writing, 192; his quartets compared with Haydn's, 192, 222; his "Don Giovanni," 266, 273, 275; his "Nozze di Figaro," 285, 320, 328, 331; his operas, 340; his German spirit, 341; his "Don Juan," 343-346; a master of form, 347, 358, 387, 390, 392. "Muette de Portici, La," Auber's, 323. Mülhausen, 121. Munich, 49, 337. Muris, Jean de, on musical instruments, 87, 90. Music, the three elementary constituents of, 10; relation of poetry to, 316; primary laws of, 386. Musical art, system of, 380. Musical learning, diffusion among the people of, 67. Musical science, formulation of, 387. Music, ancient, 240. Music, chamber, defined, 186; origin of, 187; development of, 188, 189; Germany the home of, 189; Bach's, 189, 190; Haydn's, 190, 191; Mozart's, 191, 192; Beethoven's, 193; Schubert's, 196; Schumann's, 196; Mendelssohn's, 196; Spohr's, 196; German, French, and Italian composers in, 196; reasons for retrograding, 196; Brahms', 197; Dvorak's, 197. Music, church, attempts to form a system in, 3, 19; German, 60; its cultivation in Paris, 24; simplification of, 65; methods in writing, 66; reforms in, 67-74; Roman Catholic, 77; borrows from the opera and the oratorio, 79, 240. Music, dramatic, attempt to improve the state of, 237, 252. Music, ecclesiastical, 19, 54. Music, English cathedral, 80. Music, Greek, 2, 4, 6, 14, 16, 238. Music, homophonic, 252. Musicians, early secular, 55, 61. Music, Italian, 139; influences Handel's work, 206, 214. Music, modern, early cultivation of, 1; gains independence as an art, 9; its melodic basis established, 10; introduction of harmony into, 12; Italy becomes the home of, 50. Music, opera, Italian, influence in Germany of, 211. Music, orchestral, 187. Music, organ, 102. Music, passion, the history of, 207, 208, 209; influence of Schütz upon 209; Sebastiani's, 211; Bach's, 212 217.