''Cajo Mario'' is an

opera seria ''Opera seria'' (; plural: ''opere serie''; usually called ''dramma per musica'' or ''melodramma serio'') is an Italian musical term which refers to the noble and "serious" style of Italian opera that predominated in Europe from the 1710s to abo ...

in 3 acts by

composer A composer is a person who writes music. The term is especially used to indicate composers of Western classical music, or those who are composers by occupation. Many composers are, or were, also skilled performers of music. Etymology and Defi ...

Niccolò Jommelli Niccolò Jommelli (; 10 September 1714 – 25 August 1774) was an Italian composer of the Neapolitan School. Along with other composers mainly in the Holy Roman Empire and France, he was responsible for certain operatic reforms including redu ...

. The opera's Italian language

libretto A libretto (Italian for "booklet") is the text used in, or intended for, an extended musical work such as an opera, operetta, masque, oratorio, cantata or Musical theatre, musical. The term ''libretto'' is also sometimes used to refer to the t ...

by Gaetano Roccaforte is based on Lucius Anneus Florus's ''Tito Livio e Plutarco''. All of the parts are written for

castrati A castrato (Italian, plural: ''castrati'') is a type of classical male singing voice equivalent to that of a soprano, mezzo-soprano, or contralto. The voice is produced by castration of the singer before puberty, or it occurs in one who, due to ...

, except for the title role, written for a Tenor. The work premiered on 6 February 1746 at the Teatro Argentina in Rome.

Roles

References

Operas 1746 operas Italian-language operas Opera seria Operas by Niccolò Jommelli {{italian-opera-stub