什么是ORCHESTRA？
ORCHESTRA就是管弦乐团，它分成四部分：1弦乐，包括小提琴、大提琴等，2铜管乐3木管乐和4敲击乐四组。弦乐组每种乐器有多人演奏(竖琴除外)，四组演奏者由一人统筹兼领导，他就是乐团的指挥。ORCHESTRA於17世纪出现，到18世纪因海顿和莫扎特的作品而清楚地建立模式。19世纪加入了些新乐器，乐团人数加大。ORCHESTRA是西方古典/正统音乐的正宗。西方流行/摇滚乐也经常运用ORCHESTRA的部分或全部团员协助演出。
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參考答案:ORCHESTRA, corps of orchestral music, consists of four parts: 1)string music, including violin, violoncello and so on;2)brass instruments 3)woodwind music and 4)percussion instrument.In the string music team, every instrument is played by many persons (except harps).The four groups of executants are led by a person, who is the director of the corps. ORCHESTRA came out in the 17th century and was upbuilt clearly for the works of Mozart and Haydn in 18th century. The western pop music and rock music often employ part or the whole of ORCHESTRA as an assistant performance.