Taste, part 2

My husband collects obscure records. Hundreds of them, probably thousands. He's an active member of a chat room that discusses them, and also a group that meets in real-life to share exciting new finds. Whenever he gets the chance, he plays them loud in clubs and at parties.  At any one time, he's in active pursuit of dozens of records, each one barely known to the rest of humanity. He's a genealogist of records, tracking down new albums though the family lines of producer, arranger, composer...