1. 
   Countersubject
   In music, a countersubject is a melodic or thematic idea which is played against a primary subject of a fugue, ricercar, invention, sinfonia, or other contrapuntal piece of music. Generally a countersubject contrasts in character to a principal subject, so if the primary subject is a stately one in...
   Found op http://en.wikipedia.org/wiki/Countersubject
   
   
2. 
   countersubject
   (from the article `fugue`) The answer is typically accompanied by counterpoint in another voice; if the same pairing continues throughout the fugue, that contrapuntal voice is ...
   Found op http://www.britannica.com/eb/a-z/c/150
   
   

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