Enhancement: Add sorting criteria options

[FadeFx]

I have a rather large music collection and have several genres containing V.A. samplers as well as artist albums. However, ot is quite annoying to have all tracks alphabetically sorted by artist where this results in samplers being spread all over the collection. I would love to see an option to sort tracks in configurable subcategories lets say i can choose first level genre, second level album artist third album name fourth level track number This would make large music collectiins more convinient to use and browse...