Tina Petzel replied to my post yesterday.
The reply solution works perfectly thanks to Tina.
I would like to include the scheme definition in Tina's code that
defines the override definition.
I've tried multiple times to do this without success.
Could someone with better knowledge of LilyPond detail how to include
the scheme code in an external include file (e.g. an '.ily' file)?
An example of how to do this would be really useful, and I can include
other definitions in that file too.
Otherwise, could someone tell me where the documentation is on how to
do that.
The LilyPond version for the code was \version "2.26.0".
