Re: how to write a scheme function to override glissando properties

[Marc Hohl]

Am 16.12.2010 17:04, schrieb Patrick Schmidt:
> [...]
> Hi Marc,
>
> thanks for your solution but I'm still trying to find out what's wrong 
> with the scheme function I posted. I discussed the need for this 
> function with Carl and he gave me some advice: 
> http://www.mail-archive.com/address@hidden/msg32745.html.
>
> It might be impossible to find a general set of values for staves and 
> tab staves. If I don't succeed I learned something about writing 
> scheme functions, at least. Maybe you can spot the mistake in the 
> function?
Hm, I don't know what's wrong - I tried something like

slide =
#(define-music-function (parser location len thick beg end) (number? 
number? ly:music? ly:music?)
  #{
     \once \override Glissando #'minimum-length = $len
     \once \override Glissando #'thickness = $thick
     \once \override Glissando #'springs-and-rods = 
#ly:spanner::set-spacing-rods
      $beg \glissando $end
  #})


myMusic = \relative c' {
  \slide #10 #5 a4 b4\3
}

\score {
<<
 \new Staff {
   \new Voice {
     \clef "treble_8"
     \myMusic
   }
 }
 \new TabStaff {
   \new TabVoice {
     \myMusic
   }
 }
>>
}

and that doesn't work either. I don't understand why ...

Sorry for being not very helpful.

Marc