On 12 April 2018 at 14:16, David Kastrup <d...@gnu.org> wrote:
> Gianmaria Lari <gianmarial...@gmail.com> writes:
>
> > On 12 April 2018 at 11:42, David Kastrup <d...@gnu.org> wrote:
> >>
> >> What are you trying to do? Basically you are asking whether you can
> >> make LilyPond do something different without telling it to make
> >> something different.
> >>
> >> You will need to provide more details of just what you want to be
> >> providing via which channels and what not in order to have people figure
> >> out what would better meet your requirement than just writing
> >> \keepWithTag when you want it.
> >
> >
> > 1) If it seemed I was complaining about lilypond behavior my
> > apologies, not at all.
>
> It did not seem like that to me and LilyPond won't heed complaints
> anyway.
>
> > 2) I paid much attention writing my question but, again my apologies,
> > it was not clear.
>
> The question was clear but it was not clear which leap of logic was to
> be assumed for answering it.
>
> > Let me try again with a different example.
> >
> > Sometimes I have an excerpt of music that occurs multiple time in a
> piece.
> > It occurs identically in many place except at the end of the score where
> > the last note of the excerpt should be a pause (it is just an example).
> > Without tag I would do something like this:
> >
> > excerpt = {a b c' d'}
> > excerptB = {a b c' r}
> > {
> > % .... some music
> > \excerpt
> >
> > % .... some music
> > \excerpt
> >
> > % .... some music
> > \excerptB
> > }
> >
> >
> > If I want to write the same thing with tag I would write:
> >
> > \version "2.19.81"
> > excerpt = {
> > a b c'
> > \tag #'withd d'
> > \tag #'withr r
> > }
> >
> > {
> > % .... some music
> > \keepWithTag #'withd \excerpt
> >
> > % .... some music
> > \keepWithTag #'withd \excerpt
> >
> > % .... some music
> > \keepWithTag #'withr \excerpt
> > }
> >
> >
> > This is ok.
> >
> > Is there any way to obtain the same thing writing:
> >
> > {
> > % .... some music
> > \excerpt
> >
> > % .... some music
> > \excerpt
> >
> > % .... some music
> > \keepWithTag #'withr \excerpt
> > }
>
> You probably would not stand for
>
> {
> \keepWithTag #'withd {
> % .... some music
> \excerpt
>
> % .... some music
> \excerpt
> % .... some music
> }
> \keepWithTag #'withr \excerpt
> }
>
> so your question amounts to some stuff autosuiciding. That's not really
> something the tag system will do, but you may want to look at \pushToTag
> and \appendToTag for some option of adding material only in specific
> cases.
>
Ok. I had seen the \pushToTag and \appendToTag example in the manual. But I
didn't understand the example. They are too complex for me.
Anyway, I found a nice escamotage that probably it solves my problem. I put
here in case other need.
This was the original code:
\version "2.19.81"
excerpt = {
a b c'
\tag #'withd d'
\tag #'withr r
}
{
\keepWithTag #'withd \excerpt
\keepWithTag #'withd \excerpt
\keepWithTag #'withd \excerpt
\keepWithTag #'withr \excerpt
}
And this is my solution:
\version "2.19.81"
music = { a b c' \tag #'lastnote d'}
{
\music
\music
\music
\removeWithTag #'lastnote \music r
}
Thank anyway!
g.
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