I get to drive around 1400 miles next week. I am taking the trumpet, but I'm wondering if there's anything I can do while driving (with passengers) to help my playing. Some buzzing is possible, depending on the tolerance of the passengers, but I'd rather keep my hands on the wheel in traffic. (No, I won't be playing trumpet while driving, or even as a passenger. Could make for a good music video, though.) Are there breathing exercises that might be useful? Driving posture isn't exactly ideal trumpet posture, which kind of cramps the possibilities. It's entirely possible I'm just being crazy - it just seems like a lot of time for not doing anything.