Re: Re-using "\with" contexts

[Lukas-Fabian Moser]

Hi Alasdair,

> Here a new staff is instantiated; with about 10 lines of "\with"  to 
> change its appearance and behaviour.
>
> However, if I wish to use several such staves, I don't want to be 
> copying the "\with" material into each one.  Is it possible to create 
> a new context just from such a definition? What I mean is something like
>
> myStaff = staff \with {
>     < lots of lines of definition >
> }
>
> so that I can simply create a new staff the way I want it with, for 
> example
>
> \new myStaff {
>
> }
>
> All I want is an example.  There is some information about defining a 
> new context, but in my case all I want is a tweaked version of a 
> current context.

This is easier than one might think, but - somewhat counterintuitively - 
you need _two_ instances of the word \with.

\version "2.23.7"

rainbowSettings = \with {
  \override Clef.color = #red
  \override TimeSignature.color = #green
  \override StaffSymbol.color = #blue
  clefGlyph = "clefs.C"
}

\new Staff \with \rainbowSettings {
  \key d \major
  d'4
}

\new Staff \with {
  \rainbowSettings
  \magnifyStaff 2
} {
  \key d \major
  d'4
}

And I just found out that you can even do

rainbowSettings = {
  \override Clef.color = #red
  \override TimeSignature.color = #green
  \override StaffSymbol.color = #blue
  \set clefGlyph = "clefs.C"
}

(To wit, if rainbowSettings are entered as music instead of as a \with 
clause, context properties have to be set with \set.)

Lukas