LilyPond: How do I align markup text with #"scripts.segno"?

Question

At the end of my score, I'd like to have a "Da Capo al Segno", with a nice symbol for segno.

I'm almost there:

DC = {
  \once \override Score.RehearsalMark #'break-visibility = #end-of-line-visible
  \once \override Score.RehearsalMark #'self-alignment-X = #RIGHT
  \mark \markup { "D.C. al " \tiny \musicglyph #"scripts.segno" }
}

But the segno is not aligned with the text:

How can I make that better?

Answer 1

Can't segno satisfaction...

% LilyPond engraving system - http://www.lilypond.org/
\version "2.18.0"

% There exists U+1D10B though lilypond 2.18.2 renders \char ##x1D10B as a
% boxed question mark for me. so...

DC = {
  \once \override Score.RehearsalMark #'break-visibility = #end-of-line-visible
  \once \override Score.RehearsalMark #'self-alignment-X = #RIGHT

  % option 1, move the segno up...
  %\mark \markup { "D.C. al " \raise #1.1 { \tiny \musicglyph #"scripts.segno" } }

  % ... or option 2, move the text down
  \mark \markup {
    \general-align #Y #-1.0 { "D.C. al " \tiny \musicglyph #"scripts.segno" } }
}

bbbb = {
 \tempo 4=96
 bes1~bes~bes~bes~bes~bes~bes\ppp\DC
 \bar "|."
}

\score {
  \new Staff << \bbbb >>
  \layout { }
}

Neither of these seem very satisfying, as they do not get to the root as to why that segno is seemingly disconnected from the surrounding markup. :/

Answer 2

Firstly, D.C. al Segno certainly isn't a "normal" repeat sign.

This is because segni are usually jumped to backwards, from a D.S. (like D.C.). And segni aren't usually used as ending markers. These are marked with a final barline and Fine (even when in the middle of a piece).

---

With LilyPond v2.23, there comes some new syntax for repeat structures: Da Capo, Dal Segno, ... al Fine, etc. as seen on this page of the documentation: 1.4.1 Long repeats

This avoids the need for designing your own markup functions, but unfortunately is not so easy to customise.

\version "2.23.6"

{
    \repeat segno 2 {
        a'1 |
        \volta 2 { \fine }
        a'1 |
        \section
    }   
}
    
{
    a'1 |
    \repeat segno 2 {
        b'1 |
        \volta 2 { \fine }
        c''1 |
        \section
    }   
}