Full version: http://www.cs.rochester.edu/~nelson/cesium/cesium_songs.html 

         Yesterday
 
  Yesterday.
  I had Cesium with which to play
  Now all my fingers have been blown away.
  By cesium, since yesterday.
 
  Yesterday.
  Her sky blue flame appeared to light my way.
  Now the world seems so cold and gray.
  My eyes are dim since yesterday.
 
  Why she had to blow,
  I don't know,
  They wouldn't say.
  I poured water on,
  And my skin dissolved away.
 
  Yesterday.
  Her path seemed such an easy way.
  Now I know that there's a price to pay.
  Oh, I believed just yesterday.
 
 
       ---Songs of Cesium #117
 
 
  Soon after the publication of the above translation
  A mysterious monkey paid a call and pointedly insisted
  that the translation of SOC #117 (Yesterday) from the Cesish was seriously
  flawed, particularly in the second stanza, and offered a corrected
  version, which I supply without further comment.
  RN
 
 
               Yesterday
 
  Yesterday,
  I had Cesium with which to play.
  Now all my fingers have been blown away.
  And silence reigns since yesterday.
 
  Suddenly,
  I'm just half the man I used to be.
  I have no eyes with which to see.
  My legs have parted company.
 
  Why she had to blow,
  I don't know,
  I can only say.
  Something went awful wrong,
  On the waterbed where we lay.
 
  Yesterday,
  Her sky blue path seemed such an easy way.
  Now I know there is a price to pay.
  Oh, I believed just yesterday.
 
       ---Songs of Cesium #117(b)