Re: Change stanza formatting

[Aaron Hill]

On 2019-02-28 8:53 pm, David F. wrote:
> Given a line of lyrics with the stanza number in front, how can I move
> the stanza number (“1.”) so that it is above the first syllable of the
> lyrics instead of to the left of the lyrics?
>
> \version "2.19"
>
> \new Voice \relative {
>     \time 3/4 g'2 e4 a2 f4 g2.
> }
> \addlyrics {
>     \set stanza = #"1. "
>     Hi, my name is Bert.
> }

%%%%
\version "2.19.82"

\layout { \context { \Lyrics
  \override StanzaNumber.direction = #UP
  \override StanzaNumber.side-axis = #Y
  \override StanzaNumber.self-alignment-X = #CENTER
  \override StanzaNumber.X-offset = 
#ly:self-alignment-interface::aligned-on-x-parent
  \override StanzaNumber.Y-offset = 
#ly:side-position-interface::y-aligned-side
} }

\new Voice \relative { \time 3/4 g'2 e4 a2 f4 g2. }
\addlyrics { \set stanza = #"1." Hi, my name is Bert. }
%%%%

The above snippet cheats a little because StanzaNumber does not actually 
support self-alignment-interface, but it is reusing some code to ensure 
the text is centered to the parent note.

It would be possible to support alignment to the LyricText with a little 
extra work.  The following left-aligns the StanzaNumber to the 
supporting text:

%%%%
\version "2.19.82"

\layout { \context { \Lyrics
  \override StanzaNumber.direction = #UP
  \override StanzaNumber.side-axis = #Y
  \override StanzaNumber.X-offset = #(lambda (grob)
    (let* ((sse (ly:grob-object grob 'side-support-elements))
           (lyr (car (ly:grob-array->list sse)))
           (xoff (ly:grob-property lyr 'X-offset)))
      xoff))
  \override StanzaNumber.Y-offset = 
#ly:side-position-interface::y-aligned-side
} }

\new Voice \relative { \time 3/4 g'2 e4 a2 f4 g2. }
\addlyrics { \set stanza = #"1." Hi, my name is Bert. }
%%%%

-- Aaron Hill