applyOutput Lyrics.LyricText not working?

[Thomas Morley]

Hi,

consider the following two snippets:

\version "2.19.44"

\new ChordNames
  \chordmode {
   \applyOutput ChordNames.ChordName
     #(lambda (g ctx p)
       (write-me "\ng" g)
       (write-me "ctx" ctx)
       (write-me "p" p)
       )
    c
  }

\new Lyrics
  \lyricmode {
   \applyOutput Lyrics.LyricText
     #(lambda (g ctx p)
       (write-me "\ng" g)
       (write-me "ctx" ctx)
       (write-me "p" p)
       )
    foo
  }

I get terminal-output as requested from the first example but none
from the second.

Am I doing something wrong?
Is there a limitation I'm not aware?
Or simply a bug?

Thanks,
  Harm