See http://lists.gnu.org/archive/html/lilypond-user/2006-10/msg00392.html
/Mats
Quoting David Bobroff <[EMAIL PROTECTED]>:
I need to make some ledger lines transparent. I'm using an invisible
note from which to hang a lyric syllable. The part itself (not the
cues) will need to be available
I need to make some ledger lines transparent. I'm using an invisible
note from which to hang a lyric syllable. The part itself (not the
cues) will need to be available in different clefs. This will result in
ledger lines appearing in one clef or the other. I haven't yet found
the right phrasing