>> Certainly! However, this shouldn't become part of LilyPond IMHO; >> it's opening a can of worms since all those sets are essentially >> open-ended – "why is character 'fronz with grmpf above' not part of >> this or that set?" > > Yes, but here the extensibility comes into play. If you want to do > something like that and we have a snippet for that → use the > snippet. If you prefer different encodings → change things as you > like. Lilypond does already offer a quite powerful framework for > getting such things done.
As you mention 'snippet': The right place for this is the LSR, I believe. Werner