On Wed, 2016-02-17 at 10:58 +0100, David Kastrup wrote:
> Graham King <[email protected]> writes:
>
> > Thanks Ben,
> > that will be useful once I've found a solution to the immediate problem:
> > defining and using a variable within \book{} or \bookpart{} or
> > \book[part]{ \score { }}
> >
> > \version "2.19.35"
> > \book {
> > music = \relative { c' d e f }
> > \score {
> > \music
> > }
> > }
>
> Shrug. As I stated already, there is no book-local scope where such
> variables could be defined. So there is no solution to what you
> identify as your problem.
>
> > (In case you were suggesting that I use \bookpart{} within
> > book-titling.ily, I've tried that too and it throws a lot of
> > "unrecognised string" errors.)
>
> The problem with the repeated use of "I've tried that" is that nobody
> can really guess just _what_ exactly you have tried with what error
> messages as the result. And nobody can try reproducing or debugging or
> diagnosing the problem since there is no code to work with.
>
David,
my apologies. You've underestimated my ignorance: I didn't realise that
"The \book block does not really have a scope of its own..." implied
that there is no solution. I'm sorry to have cost you your time and
frustration.
For what it's worth, here is how I now understand my error:
music = \relative { c' d e f }
\score {
\music
}
works just fine. When the Learning Manual (at section 3.1.1) says: "If
you haven't explicitly added [a \book block], LilyPond wraps your entire
input code in a \book block implicitly." it does _not_ mean that the
above code is equivalent to:
\book {
music = \relative { c' d e f }
\score {
\music
}
}
but rather:
music = \relative { c' d e f }
\book {
\score {
\music
}
}
So, for my immediate problem, I'll bite the bullet and create a
namespace in which I can define all 12 instances of the various
variables involved, and put the definitions outside the \book { ... }.
If that doesn't work, I'll just stitch some PDF's together without
further troubling the list.
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