Classical movement numbers: Arabic or Roman?

MusicBrainz
1

I seem to remember either a guideline or a discussion that said classical movement numbers should always be Roman (I. II. III, etc.), even if the track list on the release uses Arabic numbers. But I can’t find that now, and the only discussion I can find (Arabic or Roman numerals?) doesn’t agree with what I remember. My memory may certainly be faulty.

Does anyone else remember/know of such a guideline, or is the discussion linked above (Roman for mvt. numbers in works, but ‘as printed’ for track lists) the accepted practice? And what about Recordings? Match the track list, or the work?

2

Use whatever is printed for releases / whatever is most common for recordings. I’d usually use Roman numerals for movement works, personally, although I’m not sure we mandate it anywhere.