musical composition，composition，music ；

[例句] 爱乐乐团精彩演绎了这首高难度乐曲。 The Philharmonia played this staggeringly difficult music superlatively well.

[例句] 这是一曲优美流畅的电子乐曲。 It was a seamless procession of wonderful electronic music.

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[例句] 这首乐曲的序曲很长. The prelude to the musical composition is very long.

[例句] 这段乐曲的乐章不怎么连贯. The movements of this piece of music somehow don't fit together.

intermezzo ；

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