[mb-style] CSG for Opera

[Cadalach]

Hi folks,

This evening I was ripping a couple of opera CDs and discovered that
there seems to be next to no consistency in how people have entered
operas into MB. So I think we ought to try to get something written
into the CSG about this. There has been a little bit of debate on this
at

http://musicbrainz.org/doc/ClassicalStyleGuideDiscussion#head-6f242ed7573de4db5ae90cf0e53e26395303aab3

but so far nothing has appeared in the CSG.

Here's the recommendation I prefer...

TitleOfOpera, Act X, Scene Y: TitleOfTrack

Perhaps using Roman numerals for X and Arabic for Y, or perhaps just
Arabic for both (which, from a brief look, seems quite common
already)?

Any thoughts?

Best wishes,
Don