Re: passing parameter

[David Kastrup]

Urs Liska <address@hidden> writes:

> nS =
> #(define-music-function (parser location color)(color?)
>    #{
>   \override NoteHead #'layer = #2
>   \override  NoteHead.color = $color
>   \override  Stem.color = #blue
>   \override  Beam.color = #blue
>   \override Tie #'color = #blue
>   \override Slur.color = #blue
>   \override Dots #'layer = #2
>   \override Dots #'color = #blue
>   \override Rest.color = #blue
>    #})
>
> \relative c' {
>   c d \nS #red e( f) \nS #blue g1
> }
>
> You may consider using \temporary \override (rather new syntax)

\temporary \override basically only makes sense when you are doing a
corresponding \revert in the same command.

Note that you can with the above definition still write

\temporary \nS #red c d e f \undo \nS #red

in order to make a temporary change.

> And you should add another function that \revert-s the properties.

nSrevert = \undo \nS #red

It's not even cheesy but rather the main purpose of \undo.

-- 
David Kastrup