Oooh, yes, Dietre would like anyone who was into music, and piano and violin go so well together, haha. I think they could definitely strike up a bond, but the trick is how to get them to meet? Dietre is actually quite a selfish thing, deep down, so I can't see him genuinely caring about other helots' rights, but he would go along with anything to help someone he considers a friend. He's fiercely loyal once he gets attached to someone, so if they became friends he'd go on missions or whatever might be asked of him, up to and including murder, lol.