Re: [tablatures] Re: Problems with chord glissandos with articulations and tablature

[Marc Hohl]

Carl Sorensen schrieb:
> On 4/23/10 1:48 AM, "Marc Hohl" <address@hidden> wrote:
>
>   
> > Carl Sorensen schrieb:
> >     
> > > On 4/16/10 8:30 AM, "Bernardo Barros" <address@hidden> wrote:
> > >
> > >  
> > >       
> > > > [...]
> > > >    
> > > >         
> > > Check out the attached files for one possibility.  Note that I've moved the
> > > chordGlissando function to its own .ly file so it can be included in any .ly
> > > file you desire to write, without having to copy it in an editor.
> > >  
> > >       
> > Hello Carl,
> >
> > thanks for your work - this extension is great! However, in combination
> > with tab staves, the explicit declaration of "\new Voice" in
> > add-glissando-line
> > creates spurious staves below the tablature. Is there a way to switch
> > to TabVoice automatically, i.e. to get the current context, and if it is a
> > Staff, then use Voice, if it is TabStaff, use TabVoice?
> >     
>
> OK, I couldn't keep away from it while I was at my son's graduation
> exercise.
>   
Hehe, sounds familiar :-)
> I've attached replacement code that now works for both a staff and tabstaff.
> One issue -- you need to explicitly set string numbers for the chord,
> because the glissando ends up being drawn one note pair at a time, so the
> string selection algorithm doesn't work.
>
> Again, it's probably a hack rather than a real solution; the real solution
> would find the string numbers from the first chord if it's a TabVoice and
> use those numbers automatically.
>   
Thank you for investigating further. It has one serious drawback - it 
seems to be impossible
to use music variables. Your posted chord-gliss-tab.ly works properly, 
but if I use

test = { \chordGlissando <c\3 e\2 g\1 >8 <f\3 a\2 c\1 >8 }

\relative c' {
 <<
\new Staff {
  \new Voice {
    \parserSetVoiceSymbol #'Voice
    \test
  }
}
\new TabStaff {
  \new TabVoice {
    \parserSetVoiceSymbol #'TabVoice
    \test
  }
}
>>
}
it creates three separate staves below.

I wonder whether it would be possible to define something like
\new Bottom { ... }
which will be expanded to a Voice within Staff and
to [Tab|Drum]Voice within [Tab|Drum]Staff.

Perhaps I am wrong, but this should simplify things a lot.

Marc
> But it's a hack that is reasonably useful.
>
> HTH,
>
> Carl
>
>