I think it's a great way to get to know people from all around the world, learning about new cultures and influences can only be of benefit. Couch surfing always makes you feel at home even when home (Namibia) is 11000 km's away.

Music is such a broad topic, I mean to mention a single genre, jazz has over 30 sub-genres so you can't just like jazz. Thats like saying you love food. I listen to any music as long as it suits the vibe. Books I enjoy includes ones with pictures of architecture or food.