Re: writing identifiers

[Mats Bengtsson]

It's not that tricky. At first sight, you may even think that there is 
no need for
a music function at all, but as you probably have found out yourself, an
identifier like
myGrace = { \once \override Slur #'transparent = ##t \appoggiatura }
does not work. The reason is that \appoggiatura itself is a music function,
that takes one argument, namely the grace note(s). So, what you need is a
music function that takes a music expression as an argument:
\version "2.10.0"
wideGrace = #(define-music-function (parser location grace) (ly:music?)
      #{
       \once \override Slur #'transparent = ##t \appoggiatura $grace
      #})

\relative c'{
c \grace d8 e4 \wideGrace f8 g4 c
}

\layout{ragged-right=##t }


  /Mats

madhg wrote:
> Graham Percival-2 wrote:
>   
> > Follow the links.  From the bottom of 4.2, there's a link to 4.3.  That 
> > has a link to 5.6, which might solve this issue, but it's more likely 
> > that then you'll need to follow the link to chapter 12 advanced tweaks 
> > with scheme.
> >
> >     
>
> Thanks, Graham.  I had followed links as far as 5.6, which didn't help.  Ch.
> 12, "Interfaces for programmers", is serious stuff, as the title says. I
> might work on it when I have more time for study.
>
> David
>   

--
=============================================
        Mats Bengtsson
        Signal Processing
        Signals, Sensors and Systems
        Royal Institute of Technology
        SE-100 44  STOCKHOLM
        Sweden
        Phone: (+46) 8 790 8463                         
       Fax:   (+46) 8 790 7260
        Email: address@hidden
        WWW: http://www.s3.kth.se/~mabe
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