Not defining "someone" makes the question tirival. Even if it were I wouldn't know how to get inside of "someone's" head.
If someone looked through you music (records, CDs, etc.) what would surprise them?
This actually was a bit of a happening with a friend. In looking though my...special pressings, gold Cds, SACDs, and other esoteric "software sources" he was surprised at the Rosie Clooney ones. In her later life she did some CDs of "standards" and she nailed 'em.