[Lilypond-auto] Issue 2714 in lilypond: item t:number (line thickness) in fret diagrams leads to scheme error

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Documentation
New issue 2714 by ralphbug...@gmail.com: item t:number (line thickness) in  
fret diagrams leads to scheme error
http://code.google.com/p/lilypond/issues/detail?id=2714

pls wrote :

the item t:number in fret diagrams (usage described here:  
http://lilypond.org/doc/v2.15/Documentation/notation/instrument-specific-markup)  
leads to the following error:

.../Applications/LilyPond.app/Contents/Resources/share/lilypond/current/scm/fret-diagrams.scm:852:37:  
In  
procedure cadr in expression (cadr this-list):
/Applications/LilyPond.app/Contents/Resources/share/lilypond/current/scm/fret-diagrams.scm:852:37:  
Wrong  
type (expecting pair): ()

Tiny example:

\version "2.15.37" % on Mac OS X
\score {
\new Staff {
  \clef "treble_8"
  <c e g c' e'>1^\markup {
      \fret-diagram #"t:1.0;6-x;5-3;4-2;3-o;2-1;1-o;"
    }
  }
}