There is some sort of consensus on how the title of a classical track should be constructed.
It should not only contain the title of the specific track, but also the work, movement, scene, etc. it is a part of.
There is also some agreement on the delimiters to be used for that.
E.g. as described in the iTunes style guide.
(comma, colon, hyphen for: work, cat.nr.: act - scene)
Especially the placement of the colon is important.
It should be placed right behind the work title, or (when present) the cat.nr.
Le nozze di Figaro, K. 492: Act I - Scene I. No. 2 Duettino “Se a caso madama la notte ti chiama”
La Belle Excentrique: Marche franco-lunaire
Yet, I find that a lot of releases on MusicBrainz don’t follow these guidelines on using those delimiters.
You’ll often find the colon not located in between the work/cat.nr. and the rest of the title.
I wasn’t able to find much info on this subject on the MusicBrainz websites.
Only this: https://musicbrainz.org/doc/Style/Classical/Track/Title
I was curious what kind of focus/importance MusicBrainz has on this matter, and if there is some intention to get more consistency in it?