what is sinfonia
Sinfonia. Sinfonia is the Italian word for symphony. In English it most commonly refers to a 17th-or 18th-century orchestral piece used as an introduction, interlude, or postlude to an opera, oratorio, cantata, or suite.It has also sometimes been used for other types of music.n English it most commonly refers to a 17th-or 18th-century orchestral piece used as an introduction, interlude, or postlude to an opera, oratorio, cantata, or suite. It has also sometimes been used for other types of music.