Genre compilations would indeed be an attractive option, I think, if properly put together... for example in the realm of electronic music, DJ mixes and compilations of various artists (even lesser known ones) are quite popular. There's also "mood" albums - even cross-genre, the kind you see in short infomercials from time to time. I think this should be discussed at greater length.

On a side note, could I be added to the list? smile
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