Metropolitan Opera House, New York, [51] ff., [55] ff., [61] ff., [69], [72], [80], [88], [104] ff., [116], [122], [123] ff., [129], [134], [136], [142], [148], [160], [170], [172] ff., [183], [206], [292], [300], [316], [355]
Metz concert, 1920, [309] ff.
Meyerbeer, [55], [64] ff., [85], [355]
Milan concert, 1920, [306] ff.
Minna (Swedish nurse), [18]
Molière, [346]
Molinari, Maestro, [296] ff.
Moltke, [2]
Monte Carlo concert, 1920, [291] ff.
Monteux, Pierre, [343]