Grouping Albums by type

[simoncn]

The approach I described will work equally well if you use Grouping for the name of the "album type" tag. There is no need to rename Grouping to AlbumType in aliasTags.

The Grouping tag has a somewhat chequered history having been used for many different purposes, so it has a standard name but not really a standard meaning. It's fine to use it for this purpose.