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In contrast, traditional classical music starts from an abstract musical schema. This is then notated and only expressed in concrete sound as a last stage, when it is performed.

相比之下，传统的古典音乐是从抽象的音乐图式开始的。这是然后记录和只有在具体的声音表达作为最后一个阶段，当它执行。

— Pierre Schaeffer 舍费尔