One of the largest components that makes zuletzt unique - implementing groups the way MusicBrainz has (release groups in particular). I thought for a while that I would just connect songs via a shared ID, but for remixes and such, I don't think they should be so tightly coupled. This also gives the user freedom for how they want to do the grouping (a remix can be included in the group if they choose to, or it may not). This will allow someone to see a combined scrobble number for an album with, for example, a regular release, a deluxe release, and an anniversary release, in addition to the individual releases. This will complicate SQL queries rather significantly I imagine, and I'm not sure what the interface for creating/deleting groups will be (although it will likely be easier when I have full use of TS), but it's a necessity for the project.
