来自《耶鲁大学开放课程：聆听音乐 第8集 第8集》

• 
  
  Yeah.
  来吧
• 
  
  Good. Yeah. If we are
  很好 如果我们
• 
  
  and then it went on and on and on,
  然后它就持续下去
• 
  
  longer, longer, longer, and then
  越来越长 然后
• 
  
  but it was the same pattern.
  但是它是相同的形式
• 
  
  They just elongated each measure by its same amount
  他们只是把每个小节延长了等长的长度
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  so we had harmony changing on each measure,
  因此每个小节和声都要变换
• 
  
  and then in that middle section
  而到了中间段
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  each chord was changing at the rate of two measures.
  每个和弦以两小节的速率变换着
• 
  
  So the whole piece, then,
  因而 整篇乐曲
• 
  
  would be a piece involving irregular rate of change--
  会有一个不规律的变换频率
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  the entire piece.
  整篇乐曲