Quit band. You obviously resent the time spent on it and since you’re not enjoying it do something else. It’s okay you have plenty of other things going for you, assuming band wasn’t your sole EC 
Remove AP Physics 2 (you alrady have Physics 1 and you’re taking Physics C), and do NOT add AP bio.
Your schedule, with 50% stem classes, is too “pointy” - double up is good, but tripling is un-necessary, and quadrupling is ???.. Having that many AP’s will not impress colleges - it’ll only mean short nights (make sure you have 1hour each evening for college apps AND sleep 8 hours per night). Take college classes in college, use high school for your academic foundations.
APES => doesn’t add anything to your schedule in terms of rigor but is a great class
BC calc,
AP lit,
AP gov, AP econ,
AP physics 2 => replace with a foreign language or a “fun” course (signals you’re not an AP junkie but a kid who likes learning for its own sake)
AP physics C
AP music theory => shows interest and skill in music (known to be quite difficult)