The Classical views are simply a matter of file structure and using the MC views to "slice and dice"
I have a folder structure 01 - Rock, 02 - Classical etc so I create a view and set a rule "File Path contains "02- Classical""
in metadata I have a mx of built in Tags or Custom Tags for Composer, Genre, Sub Genre , Composition Movement , Box Set etc Manually a bit of a chore but allows so much customization
Then Under base View of Classical I have created Views specific to my needs. In the images below you will see Composers, in that view I have limited the Composers to my "top xx" and Composers(all) show literally that , same for Artists
Understanding the Expression Language and how to use the View Creation Wizard allows you to create pretty much anything you want. These views can then be added to either a DLNA sever view or a JRemote view