First off, I really like this idea but I don't really understand that whole point system you were talking about. Why are there points?
As for genres, I wish more people listened to classical music on MB so I would be happy to help in classical. But rather than albums I think just a type of work by a composer could be used as an album and then maybe a recommened recording. (Example: Beethoven's Sonatas, recommended recording: Claudio Arrau). Then, within the list of 10, there could be like 2 per period (baroque, romantic, etc...). Something along the lines of this I think would work well.
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