Re: Fwd: Possible bug with minimumFret

[Federico Bruni]

Il 04/01/2013 15:26, David Kastrup ha scritto:
> Federico Bruni<address@hidden>  writes:
>
> > 2013/1/4 Eluze<address@hidden>
> >
> > > Yevgeny Lezhnin wrote
> > > > When I trying to change TabStaff.minimumFret to 3 there is 0 fret for
> > > > all notes, that can be on 0 fret.
> > >
> > > see the NR:
> > >
> > > http://www.lilypond.org/doc/v2.17/Documentation/notation/common-notation-for-fretted-strings
> > >
> > > Even when minimumFret is set, open strings are used whenever possible. This
> > > behaviour can be changed by setting restrainOpenStrings to #t
> >
> > I've been wondering for a while why restrainOpenStrings is set to #f by
> > default.
> > Most of the times users expect not to have open strings when they set
> > minimumFret. IMO open strings should be restrained by default when
> > minimumFret is set.
> >
> > I've skimmed through issue 2348 but I couldn't find any discussion on this
> > matter.
> > What do you think about it?
>
> I disagree.  When I am playing in seventh position and am _not_ using a
> barre, I _very_ definitely don't want frets below the seventh _except_
> for empty strings.
>
> Very typical would be the three-voiced passages of lute/guitar versions
> of the prelude in BWV1006.  Those are fingered in rather high frets, but
> with the high E string being played empty all the while.

Yes, I'm aware of such situations.
I just wanted to report that at least in my experience most of the times 
I use minimumFret I have to set restrainOpenStrings to true. And I 
_think_ that most of people using tablature experience the same. I might 
try to ask on lilypond-user.. or just wait and see if someone else 
"complains" about it.

> It might conceivably make sense to have a more specific interface: one
> allowing to specify _which_ strings are allowed empty.  It is unusual
> (though not unheard of) to use an empty string in the _middle_ of played
> strings in high positions: usually this is done on an exposed string
> either above or below (like with a half-barre) the fingered strings.

Yes, that could be handy.
Currently we have two options: re-setting minimumFret for the open 
string with \once \set or using string numbers.

\version "2.17.10"

music =  \relative c' {
  \set minimumFret = #6
  \set restrainOpenStrings = ##t
  g8 b \once \set minimumFret = #0 g g'

  \unset minimumFret
  g,\5 b\4 g g'\2
}

\score {
  \new StaffGroup <<
    \new Staff <<
      \context Voice { \clef "G_8" \music }
    >>
    \new TabStaff  <<
      \context TabVoice { \clef "moderntab" \music }
    >>
  >>
}