当人类发明了乐谱后，音乐便开始脱离表演，演变成文字得以记录和传播。
When mankind invented musical scores, music bagan to break from the boundaties of being only a performing art and developed into a system of written symbols that can be recorded and spread.
当人类发明了乐谱后，音乐便开始脱离表演，演变成“文字”得以记录和传播。
When mankind invented musical scores, music started to break away from the boundaries of being merely a performing art, and develop into a system of "written symbols" that can be recorded and spread.
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