In case someone doesn't know, it is my understanding that English has twice as many words than the next language. This is likely due to many factors, including its willingness to incorporate foreign words and phrases into the lexicon. Since we are all currently living during the Pax Britannia/Americana era of history, English is the de facto lingua franca of the internet and I suspect that the majority of entries on site are in English.
The adoption of foreign words and phrases has resulted in some inconsistent capitalization on site. For instance: Mamma mia
Here we have an Italian phrase that was adapted into English and found its way as the title of an English song by a Swedish artist. As I currently view this page:
a) The work is styled "Mamma mia";
b) The original performance styled "Mamma Mia"; and
c) Numerous English, Foreign and instrumental covers are styled either way.
For SHS, it's my understanding that work, performance and release titles are all subject to site capitalization rules regardless of original styling; however, this page is all over the place.
It's also my understanding that there has been a long history of how to capitalize non-English titles of English works. For what it's worth, my view is that the cap rule should be that applied for the primary language of the work/performance. Sorry, but "Livin' la vida loca" just looks silly.
Anyway, post made in lieu of an error report....