Scott Joplin - see link below.
Wolfgang Amadeus Mozart wrote the music for the opera Così fan tutte.
The opera Mefistofele was written by the Italian composer Arrigo Boito.
Joseph Addison
Richard Wagner
Verdi
Ragtime and 1902
He was Scott Joplin.
A score is the written version of a piece of music, and sometimes the word score implies an ensemble of musicians rather than a solo work. Ragtime is the music popularized in the US by Scott Joplin. Joplin wrote many piano rags, and even an opera in the rag tradition.
Irving Berlin
Redd Stewart & Pee Wee King
He never wrote an opera.
Mozart
Wolfgang Amadeus Mozart wrote the music for the opera Così fan tutte.
Andrew Lloyd Webber wrote this modern opera.
The opera Mefistofele was written by the Italian composer Arrigo Boito.
Gaston Leroux wrote the original book of Phantom of the Opera, but it was later made into a film/play by Andrew Lloyd Webber, who also wrote the music for it.
Ferdinand Herold