Centering a line of lyrics on a staff?

Question

I would like to center a line of lyrics on a staff so that the lyrics go inside of the empty space. Right now I have this:

<<
    \new Lyrics \lyricmode {
        1
        \markup \column {
            "Vertically"
            "center"
            "on staff"
        }1
        1
    }
    
    \new Staff {
        c1 | \stopStaff s1 \startStaff | c1
    }
>>

But it just prints the lyrics above the staff. What can I do to put the lyrics inside so that they push the next measure horizontally instead of vertically?

I would also be fine with adding markup, as long as I can put the markup inside of a staff too.

Answer 1

Theoretically you can to that by using 0 distance and negative padding:

<<
    \new Lyrics \with {
      \override VerticalAxisGroup.nonstaff-unrelatedstaff-spacing.basic-distance = 0
      \override VerticalAxisGroup.nonstaff-unrelatedstaff-spacing.padding = #-inf.0
    } \lyricmode {
        1
        \markup \vcenter \column {
            "Vertically"
            "center"
            "on staff"
        }1
        1
    }
    
    \new Staff {
        c1 | \stopStaff s1 \startStaff | c1
    }
>>

which would probably not be the best way to get what you want. Rather the least esoteric way to do it if you do not strictly need lyrics is to use a markup

\new Staff {
    c1 |
    \stopStaff
    \once\textLengthOn
    s1-\tweak outside-staff-priority ##f -\tweak Y-offset 0 -\markup \vcenter \column {
        "Vertically"
        "center"
        "on staff"
    } \startStaff | c1
}

If you do for some reason need this to be Lyrics you could simply make the staff handle lyrics events:

\new Staff \with {
  \consists Lyric_engraver
} {
    c1 |
    \stopStaff
    \lyricmode {
        \markup \vcenter \column {
            "Vertically"
            "center"
            "on staff"
        }1
        These4 are ac -- tu -- |
        al ly -- rics2
    }
    \startStaff | c1
}