Thomas Aquinas

#2

One of the great works of Thomas Aquinas, probably written around 1264. Its purpose is in debate, but it was probably written as a manual of philosophy and theology for missionaries to the Moors. It provides much supporting material for the more famous Summa Theologicae. Its correct title is Liber de veritate catholicae fidei contra errores infidelium ("The Book on the Truth of the Catholic faith against the Errors of the Infidels")

#3

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.