There are over 400 questions with tag lilypond on SE: MP&T, these are about the music programming language LilyPond.
However, at least 20 of theses questions* are really about Scheme.
Scheme is used by LilyPond (and in some lilypond files explicitly), but it is ~basically~ a different programming language.
Would it be worthwhile to introduce a new tag for these questions? (.e.scheme or similar)
Or, are there some reasons that this would not a good idea?
I am assuming that these questions are on-topic, but this is perhaps debatable. I'm thinking that this is a valid assumption though, because question on LilyPond are on-topic and LilyPond uses Scheme.
If this tag is created, it should probably always be used in conjunction with the LilyPond tag, because questions about Scheme that aren't also about LilyPond aren't going to be on-topic in SE: MP&T, (whereas they would be on-topic on Stack Overflow).
* Many more answers are scheme based, but I'm specifically talking about questions here.