Already have music in score

[andrew Black]

Hi
The example below is producing error message "Already have music in 
score".  Any suggestions to what is wrong .


GNU LilyPond 2.4.2
Processing `silentNoonWords.ly'
Parsing...

error: Already have music in score

error: This is the previous music
warning: Need music in a score
============================

bassMusic = \relative c {
  c4 c c c

  }

bassLyrics = \lyrics { etc  etc etc }

\score  {

   \context Voice = bassVoice {
      \clef "G_8"
      \bassMusic
   }
  \context Lyrics = bassusLyrics \lyricsto bassVoice { \bassLyrics }



}