- Sep 6 Lyubomir Pipkov, Bulgarian pianist, composer, music educator, and (with his father) Antarctic glacier namesake, born in Lovech, Bulgaria (d. 1974)
- Sep 8 Carlos Sánchez Málaga, Peruvian composer, born in Arequipa, Perú (d. 1995)
- Sep 12 Gavriil Popov, Soviet Russian composer, born in Novocherkassk, Russia (d. 1972)
- Sep 14 Karel Šrom, Czech composer, musicologist, critic, and broadcaster, born in Pilsen, Kingdom of Bohemia (now Czech Republic) (d. 1981)
- Sep 14 Kunihiko Hashimoto, Japanese composer, violinist, conductor, and musical educator, born in the Hongo district of Tokyo (d. 1949)
- Sep 14 Richard Mohaupt, German composer (Bucolica), born in Wrocław, Poland (d. 1957)
Frederick Ashton (1904-1988)
Sep 17 British choreographer (Cinderella), born in Guayaquil, Ecuador
- Sep 24 Cemal Reşit Rey, Turkish composer, born in Jerusalem, Ottoman Empire (d. 1985)
- Sep 24 Jan August [Augustoff], American pianist and xylophonist ("Misirlou"), born in New York City (d. 1976)
About September 1904
How Old? 119 years old
Generation: Greatest Generation
Leap Year: Yes
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