来自《耶鲁大学开放课程：聆听音乐 第7集 第7集》

• 
  
  Now we're going to go from E up to G.
  然后从E到G
• 
  
  Notice here we get one, two, three--just three.
  注意这里有一 二 三 只有三个
• 
  
  And that's because, as I said before,
  那是因为 我以前说过的
• 
  
  we've got this arbitrary division of the octave
  八度的分割
• 
  
  according to Greek mathematics
  是根据古希腊数学强行划分的
• 
  
  onto which in the ninth and tenth and eleventh century
  在此基础上 在九 十和十一世纪
• 
  
  the Benedictine monks laid on another system
  本笃会的僧侣曾采取另一种方式
• 
  
  that didn't quite work.
  但并不怎么起作用
• 
  
  So up here this all seems to be the same distance.
  因此这里看起来似乎是相同的间距
• 
  
  E to F seems to be the same distance
  从E到F是似乎相同的间距
• 
  
  as D to E but it's not.
  与从D到E一样 但不对
• 
  
  It's only half the distance.
  距离只有一半