@yantar92

It may not be a valid strategy, but I cloned #orgmode from git, installed requisite texinfo and texi2html packages, did a sudo make install and restarted #Emacs — now #LilyPond blocks are rendered as source 😕. Nicely cropped source 🤣

My guess is, along with defining font-lock-reference-face, I'd done something manually before my first (full-page rendered) #Org2Blog tries that was lost in the restart.

I'm also hunting a way to save drafts locally, a puzzle for another day.