The history of opera has a relatively short duration within the context of the history of music in general: it appeared in 1597, when the first opera, Dafne, by Jacopo Peri, was created. Since then it has developed parallel to the various musical currents that have followed one another over time up to the present day, generally linked to the current concept of classical music. Opera (from the Latin opera, plural of opus, "work") is a musical genre that combines symphonic music, usually performed by an orchestra, and a written dramatic text—expressed in the form of a libretto—interpreted vocally by singers of different tessitura: tenor, baritone, and bass for the male register, and soprano, mezzo-soprano, and contralto for the female, in addition to the so-called white voices (those of children) or in falsetto (castrato, countertenor). Generally, the musical work contains overtures, interludes and musical accompaniments, while the sung part can be in choir or solo, duet, trio, or various combinations, in different structures such as recitative or aria. There are various genres, such as classical opera, chamber opera, operetta, musical, singspiel, and zarzuela. On the other hand, as in theater, there is dramatic opera (opera seria) and comic opera (opera buffa), as well as a hybrid between the two: the dramma giocoso. As a multidisciplinary genre, opera brings together music, singing, dance, theater, scenography, performance, costumes, makeup, hairdressing, and other artistic disciplines. It is therefore a work of collective creation, which essentially starts from a librettist and a composer, and where the vocal performers have a primordial role, but where the musicians and the conductor, the dancers, the creators of the sets and costumes, and many other figures are equally essential. On the other hand, it is a social event, so it has no reason to exist without an audience to witness the show. For this very reason, it has been over time a reflection of the various currents of thought, political and philosophical, religious and moral, aesthetic and cultural, peculiar to the society where the plays were produced.
Emmanuel Pierre Jean Ravalet, Marc Antoine Messer