Re: Scheme function to output \bookpart {} ?

[Simon Albrecht]

On 23.09.2015 22:45, Thomas Morley wrote:
> 2015-09-23 17:50 GMT+02:00 Simon Albrecht <address@hidden>:
> > Hello,
> >
> > is it possible to have a Scheme function output a bookpart? In the attached
> > example and my real-world setup, I get ‘error: bad expression type’.
> >
> > TIA, Simon
> Hi Simon,
>
> this may give you a starting point:
>
> \version "2.19.27"
>
> test =
> #(define-scheme-function (mus) (ly:music?)
>    (ly:book-process
>      (ly:make-book-part (list (ly:make-score mus)))
>      $defaultpaper
>      $defaultlayout
>      (ly:parser-output-name)))
>
> m = { c'4 }
>
> \test \m

Shoot, I did find a flaw: I need a \bookpart {}, not a \book, but it 
needs to contain a \paper block. How can I do that?

TIA, Simon