OK so I don't expect anyone to know the SONG, but the poem maybe.  This was set by Aaron Copland in a series of songs.  I was listening to them a few days ago, and Heath flashed in my head when this one started.
HEART, we will forget him!  
  You and I, to-night!  
You may forget the warmth he gave,  
  I will forget the light.  
   
When you have done, pray tell me,        
  That I my thoughts may dim;  
Haste! lest while youre lagging,  
  I may remember him! 
Emily Dickinson