Medea, Tragedia Lirica In Tre Atti, composer Giovanni Pacini (Arkadia), n.d. Box 468 (MS 10757) Unit ID: 344 Date: n.d.
Medea, Tragedia Lirica in Tre Atti Di Benedetto Castiglia, composer Giovanni Pacini (Arkadia S.R.L. Edizioni Musicali), n.d. Box 468 (MS 10757) Unit ID: 343 Date: n.d.
Mefistofele, composer Arrigo Boito (R. Ricordi & C.), n.d. Box 481 (MS 10757) Unit ID: 405 Date: n.d.
Mefistofele, composer Arrigo Boito (R. Stabilimento Ricordi), n.d. Box 439 (MS 10757) Unit ID: 221 Date: n.d.
Meine Gesangskunst, Lilli Lehman (Berlin, Verlag Der Zukunft), n.d. Box 653 (MS 10757) Unit ID: 21 Date: n.d.
Mein Liebeslied muss ein Walzer sein, composer Robert Stolz, n.d. Folio-Box 366 (MS 10757) Unit ID: 954 Date: n.d.
Mein Traum, Mein Traum, composer Emmerich Kálmán, n.d. Folio-Box 368 (MS 10757) Unit ID: 4 Date: n.d.
"Mein Traum, mein Traum" from Kaiserin Josephine, composer Emmerich Kálmán (Octava Music Co. Ltd.), 1936 Folio-Box 368 (MS 10757) Unit ID: 8 Date: 1936