Hi Jean, > For the record, the GSoC code and the review discussion around it > are found at > https://gitlab.com/lilypond/lilypond/-/issues/5224 > and in the two links to appspot.com at the top.
Thanks for that. I've looked through, and I can't see where polychords are even considered. Maybe I just don't grasp how rich the semantics mechanism is? Happy to be shown how it makes polychord entry intuitive and easy for the user. Cheers, Kieren.