Re: Problems with using \bookpart

[Timothy Lanfear]

On 21/12/16 10:16, David Sumbler wrote:
> Thanks for that solution.  It is helpful to know that I can get things
> to work in this way.  However, I do wish I understood why this works
> and my version doesn't - bearing in mind that my version does work
> until I introduce /bookpart, yet the error messages produced by
> Lilypond don't obviously relate to that.
>
> What is also curious is this.  I understand that introducing Scheme
> code with '#' or '$' affects at what point the code is run.  Your
> version works in both cases.  My version works in neither case,
> although only the '$' version produces the error messages.  Using the
> '#' version there are no errors apparently, but still no output file is
> produced.
>
> Molto misterioso!
>
> David

After a little experimentation, if appears that a default paper 
definition is not being created, which can fixed by adding an explicit 
\paper statement in testprint.ily.

\version "2.19.48"

\language "english"

printScore  = ##t
printMvtOne = ##t
printMvtTwo = ##t

$(if
  (and printScore
   (or printMvtOne printMvtTwo))
  #{ \include "testprint.ily" #} )

%%%%%%%%%%%%%%%%%%%

\version "2.19.48"

\book {
  \bookpart {
    \paper {}
    \score { c'' }
  }
}


--
Timothy Lanfear, Bristol, UK.