Re: Setting context properties with \with

[Knute Snortum]

On Fri, Dec 27, 2024 at 1:46 PM Dan Eble <dan@lyric.works> wrote:

>
> https://lilypond.org/doc/v2.24/Documentation/learning/modifying-context-properties
>
> Under the heading "Setting context properties with \with", there are
> these statements:
>
>      Properties set in this way may still be changed
>      dynamically using \set and returned to the default
>      value set in the \with block with \unset.
>
>      So if the fontSize property is set in a \with
>      clause it sets the default value of the font size.
>      If it is later changed with \set, this new default
>      value may be restored with the \unset fontSize command.
>
> This is not the behavior that I see.  I see that \unset clears the value
> of a property that was established by \with just as if it had been
> established with \set.  For example, this does _not_ print a gigantic note.
>
> ```
> \new Voice \with { fontSize = 20 } {
>    \unset fontSize
>    c''
> }
> ```
>
> Is this a documentation problem, or is LilyPond broken and I'm the first
> person to notice?
> --
> Dan
>

Interesting.  this doesn't work with Voice, as you point out, but it does
work with Staff:

%%%
\version "2.24.4"

\new Staff \with { fontSize = 20 } {
  \new Voice  {
    \set fontSize = 10
    c''
    \unset fontSize
    c''
  }
}
%%%

--
Knute Snortum