- Sep 10 (Theodora) "Dora" Pejačević, Croatian countess and composer (Symphony in F-sharp minor, Op. 41), born in Budapest, Kingdom of Hungary (d. 1923)
- Sep 11 Herbert Stothart, American theater (Rose-Marie) and film score composer (The Wizard of Oz; Mutiny on the Bounty; A Night at the Opera), born in Milwaukee, Wisconsin (d. 1949)
- Sep 14 María Grever, Mexican-American composer ("What A Difference A Day Makes" / "Cuando vuelva a tu lado"), born in Guanajuato, Mexico (d. 1951)
- Sep 14 Vittorio Gui, Italian conductor and composer (Batture d'aspetto), born in Rome, Italy (d. 1975)
- Sep 17 Uzeyir Hajibeyov, Soviet composer who composed the anthem used by Azerbaijan during the Soviet period, born in Agjabadi, Russian Empire (d. 1948)
- Sep 18 Muslim Magomayev, Azerbaijani-Soviet composer, born in Grozny, Chechen Republic, Russia (d. 1937)
- Sep 21 Thomas de Hartmann, Russian composer, born in Khoruzhivka, Poltava Governorate, Russian Empire (d. 1956)
- Sep 24 Artur Lemba, Estonian concert pianist, composer (Sabina), and piano teacher (St. Petersburg Conservatory, 1908-20), born in Revel, Russian Empire (now Tallinn, Estonia) (d. 1963)
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