Re: Bow positions (sul pont, sul tasto) with transition arrows

[Kieren MacMillan]

Hi Nate,

> I’m trying to figure out the “right” (most flexible, best looking) way to put 
> bow positions like sul pont and sul tasto (really their abbreviations s.p. 
> and s.t.) above a staff with transition arrows, like in Gould’s Behind Bars 
> p. 407. Here are some things I’ve tried:
> 
> • Use a TextSpanner 
> (https://lilypond.org/doc/Documentation/notation/line-spanners), as suggested 
> at https://lists.gnu.org/archive/html/lilypond-user/2017-12/msg00347.html. 
> This has the advantage of being relatively simple to use. Some disadvantages 
> are that the text at the ends of the arrow tends to be misaligned (although 
> this can be fixed with some hacks), and the line-breaking behavior can 
> produce unreadable results.

Can I ask why you don’t use the broken parameter(s) for that? e.g.

\score {
  \new Staff \relative {
    <<
      {
        \override TextSpanner.style = #'line
        \override TextSpanner.bound-details.left-broken.text = ##f
        \override TextSpanner.bound-details.left.text = \markup {
          \italic "sul tasto"
          % \hspace #0.25
        }
        \override TextSpanner.bound-details.left.stencil-align-dir-y = #CENTER
        \override TextSpanner.bound-details.right.arrow = ##t
        \override TextSpanner.bound-details.right-broken.arrow = ##f
        \override TextSpanner.bound-details.right.stencil-align-dir-y = #CENTER
        \override TextSpanner.bound-details.right-broken.text = ##f
        \override TextSpanner.bound-details.right.text = \markup \italic "norm."
        s1\startTextSpan s s\stopTextSpan
      }

      { c'1~1~ \break 1 }
    >>
  }
}

Cheers,
Kieren.
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