Request third opinion: common name vs. specific name

@cguo88 and I have been wrestling with this problem for a while and we need a third opinion! @kyrieb-ekat, @annamorphism, this one is for you, if you feel inspired.

The [soprano cornet](https://umil.linkedmusic.ca/instrument/3937/) is a cornet that is pitched a fourth above the standard Bb cornet. The standard cornet plays in the soprano range, so the soprano cornet may be better called the "sopranino cornet," but since the standard highest cornet is just called "cornet," the one above that becomes the soprano cornet. (I hope that made sense).

The most common translation for "soprano cornet" that we found seems to be "cornet soprano," but at least one website uses "cornet soprano" to refer to the _standard_ Bb cornet. The name that avoids all ambiguity is "cornet soprano en Mib," but that's not what people typically call it, because it's a bit of a mouthful.

We've definitely agreed that both "cornet soprano" and "cornet soprano en Mib" should be included on UMIL, but the question is: which should be the main label, and which should be an alias? "Cornet soprano" is the more common name, but possibly ambiguous, whereas "cornet soprano en Mib" is not so common, but completely unambiguous.

This situation comes up fairly often, so it'd be handy to decide what we generally prefer.

No files, tests, or entry points are named. Review the linked soprano cornet instrument entry and the discussion, then decide which name is the primary label, which is the alias, and what general naming rule should apply to similar cases.

Written by the indexing model from the issue text.