My Roommate's Weird Habits Are Getting to Me

Okay, so maybe I shouldn't complain because I'm lucky enough to have a roommate who isn't annoyingly loud or messy. But there are just these little things she does that drive me crazy! Like every night at exactly 10:30 PM, no matter what, she starts practicing her violin. And it's not even her practice session, she has those earlier in the afternoon. No, this is some random noodling around on her instrument like she's lost inside a symphony of her own making. Also, she leaves notes all over the place for no reason, I found one on my pillow that said 'Don't forget to breathe.' Seriously? And every time I try to bring it up, she looks at me with those big innocent eyes and acts as if nothing is wrong. I feel like such a jerk for not being more understanding, but seriously, how many notes do we need? Can’t I just live my life without the constant reminders?