Editing 1903 in music (section)

==[[Opera]]==
* [[Eugen d'Albert]] – ''[[Tiefland (opera)|Tiefland]]'' premiered on 15 November at the [[Prague State Opera|Neues Deutsches Theater]], Prague
* [[Thomas O'Brien Butler]] – ''[[Muirgheis]]'' (first Irish opera) produced in Dublin on 7 December
* [[Ernest Chausson]] – ''[[Le roi Arthus]]'', first performance at the [[Theatre de la Monnaie]], Brusseles on 30 November
* [[César Cui]] – ''[[Mademoiselle Fifi (opera)|Mam'zelle Fifi]]'' premiers in Moscow on 17 January
* [[Vincent d'Indy]] – ''L'étranger'', premiers at the [[Theatre de la Monnaie]] in Brussels on 7 January
* [[Edmund Eysler]] – ''[[Bruder Straubinger]]'' premiered on 20 February at the [[Theater an der Wien]], Vienna
* [[Ermanno Wolf-Ferrari]] – ''[[Le donne curiose]]'' premiers at the Residenztheater in Munich on 27 November
* [[Umberto Giordano]] – ''[[Siberia (opera)|Siberia]]'' premiers at [[Teatro alla Scala]] in Milan on 19 December
* [[Alexander Gretchaninov]] – ''[[Dobrynya Nikitich (opera)|Dobrynya Nikitich]]'' premiered on 27 October at the [[Bolshoi Theater]] in Moscov
* [[Scott Joplin]] – ''[[A Guest of Honor (opera)|A Guest of Honor]]'' (lost)
* [[Mykola Lysenko]] – ''[[Taras Bulba (opera)|Taras Bulba]]'' premiered on 20 December in Kiev
* [[Juan Manén]] – ''Giovanni di Napoli''
* [[John Knowles Paine]] – ''[[Azara (opera)|Azara]]'' premiered in a concert version on 7 May in Boston
* [[Emile Pessard]] – ''L'Épave'' premiered on 17 February at the [[Théâtre des Bouffes-Parisiens|Bouffes-Parisiens]], Salle Choiseul, Paris
* [[Sergei Vassilenko]] – ''{{transliteration|ru|Skazaniye o grade velikom Kitezhe i tikhom ozere Svetoyare}}'' ("Tale of the Great City of Kitezh and the Quiet Lake Svetoyar") first staged version is produced in Moscow (originally a cantata, Op. 5)