Can we please add "Classical Music" as a Secondary Release Group type?

Editors are already asked to make a judgement on whether music is Classical Music or not when they have to choose the appropriate style guidelines.

Adding this as a Secondary Release Group type would be an easy way for MB to start to support curated, voted major genres.

If there was consensus on what the top-level genres are, they could all be added, but this is IMO a bit optimistic (unless MB wanted to adopt e.g, the top level genres as defined by RateYourMusic) - but my next choice after Classical Music would be Jazz.