I recall it took about a month before I really started to see things differently. I remember first it seemed like I could finally really "see" myself. It was as if I was watching a TV show and getting to interpret myself from an outside view. Definitely the most poingant thing I sarted to see differently was myself. I lost all the hatred I had for myself and started to realize that I was worth living for, not drowning daily with alcohol. Then like you mentioned, music became a lot more meaningful for me. Instead of listening for something that could just cover up something I was feeling, or elate something I was feeling, I started listening and appreciating music. I am a must nut and always loved it, but over the years I lost my true appreciation for it-but now I have it back again.
Those 2 are definitely the big ones I started seeing differently.