a piece of music这句话是什么意思啊?各位帮帮小妹啊!

a piece of music这句话是什么意思啊?各位帮帮小妹啊! The concert began with a piece by an undnown composer.这句话里,a piece的意思我不太懂,我对它的理解是a piece指代的是一首曲子,完整的结构是:a piece of music,它省略了乐曲,是不是这样? 是ten piece of music还是ten pieces of music 这句话是不是被动语态This piece of orchestral music is write by Wagner .这支管弦乐曲是瓦格纳写成的.write不用改变形态吗 为什么 what type of film do you think each piece of music comes from?这句话应该如何翻译? Rose p_____ a piece of beautiful music at the party. Our schoolday always s( ) with a beautiful piece of music. like a piece of music does not break up the liang zhu is a piece of very popular v() music he played a piece of music during the composition 哪个对:a piece of beautiful music和a beautiful piece of music请问,英语如何表达 This piece of music is ____wonderful piece I'v ever heard.改为同意句原句是I have never heard such a piece of wonderful music This piece of music was composed by a very famous blind( music)______.填空 That is ________ music. A.a new B.a new piece of C.an new D.new a piece of What a beautiful piece of music!和a piece of important imformation.这两句中为什么形容词放的位置不同 that piece of music s( ) beauyiful This piece of music (s )very beautiful. The students taking part in the contest will listen to part of a song or a piece of music这是一道短文改错题，这一段的错误应该在哪里？请帮我找出来，然后写上正确答案，