Re: Add text to score without affecting spacing

[Kieren MacMillan]

Hi Jean,

> By the way: pedantically, I would recommend

Thanks for that.

> Basically, \null leads to point-stencil, which has
> the extent '(0 . 0) on both axes -- a single-point
> interval. That's small, but not totally empty.
> empty-interval is '(+inf.0 . -inf.0) which is truly
> empty, and this is the extent of empty-stencil on
> both axes.

I've found interesting failures when using empty-stencil, e.g., this snippet 
based on a David K suggestion:

%%%  SNIPPET BEGINS
\version "2.23.4"

ignoreH =
   \propertyTweak horizontal-skylines ##f
   \propertyTweak extra-spacing-width #empty-interval
   \etc

ignoreV =
   \propertyTweak vertical-skylines ##f
   \propertyTweak extra-spacing-height #empty-interval
   \etc

ignore = \ignoreH \ignoreV \etc

{
  c'4-\ignore _\f
%  c'4-\ignore ^\markup "test"  %%  uncomment to see failure
}
%%%  SNIPPET ENDS

Sometime it's very hard to know what to use in Lilypond… <sigh>

— Kieren