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The opera was preceded by a short sinfonia .

歌剧开始前有一简短的序曲。

Sinfonia concertante for violin and viola in e-flat major .

降e大调-小提琴与中提琴的协奏交响曲。

Sinfonia : an instrumental composition serving as an overture , as to an opera or a cantata , especially in the 18th century .

序曲：管弦乐曲一种用于作歌剧或康塔塔序曲的管弦乐曲，尤指18世纪的。