Re: [Lilypond-auto] Issue 2348 in lilypond: Patch: Handling of open strings in tablature

[lilypond]

Updates:
        Status: Accepted

Comment #30 on issue 2348 by address@hidden: Patch: Handling of open  
strings in tablature
http://code.google.com/p/lilypond/issues/detail?id=2348

We have confusion about how restrainOpenStrings checks maximumFretStretch  
even for fret-0.   
<http://lists.gnu.org/archive/html/bug-lilypond/2012-12/msg00062.html>

If we ask for a high A, fifth fret on guitar, and the pitch of the open low  
A string, restrainOpenStrings causes LilyPond to conclude that we cannot  
reach a finger to stop at fret-0 (the nut, which does not need to be  
stopped with a finger)

\version "2.16.0"
music =  {
  \set restrainOpenStrings = ##t
  \set minimumFret = #0  % the default
  % \set maximumFretStretch = #4  % the default
  <a, a'>1 }
<< \new Staff { \clef "G_8" \music }
   \new TabStaff { \music } >>
%%%%  Output tablature indicates fifth fret for both As; expected low A on  
fret-0

I see from the code the behavior is intentional,  Before we document, we  
should confirm that it is desired, or simply reverse this part of the  
patch.  Is it ever useful to check stretching in these cases?  Notice that  
the behavior changed with issue 2256 shortly before this issue, so we might  
be preserving an accidental confusing feature.