Skips in lyric mode (2)

Although s skips cannot be used in \lyricmode (it is taken to be a literal “s”, not a space), double quotes ("") or underscores (_) are available.

So for example:

\version "2.24.0"

<<
  \relative c'' { a4 b c d }
  \new Lyrics \lyricmode { a4 "" _ gap }
>>