service agreement. A contract entered into for a contractor to provide some form of useful task for their employers in return for compensation. A service agreement can also be a feature offered along with a warranty for a product for the manufacturer to provide service or coverage of any costs of service in case the product malfunctions during a given period.
Euridice (1600) is the first surviving opera. The libretto was by Rinuccini, music by Peri, with some portions by Caccini. This was also significant in that it used recitative, a foundation of operatic storytelling. But--what was the first great opera? My vote is for Monteverdi's Orfeo, libretto by Striggio, premiered in 1607.
Baroque opera from 1600. The first operas were written around 1600 by Baroque composers including Monteverdi and Cavalieri, and the genre quickly took off. Early operas used dramatic text and music, which were often based on Classical Greek and Roman mythology.ivaldi's The Four Seasons. Vivaldi is best known for his concertos. The Four Seasons is his most famous violin concerto. An early example of music written to a programme, this Baroque masterpiece sets the passing of the year to music and remains popular to this day.