Dear Betty,
How much rent are you paying to live in that nice house in Bethesda? And how much do you contribute to the grocery bill? If the answer is none, then you are seemingly in a normal parent-child relationship. And in such a relationship, the parent is entitled to make decisions that they see are in your and their best interest and that bring them some peace of mind at 1:30 in the morning. And you, being thankful that they provide you with a nice roof over your head and nice food to eat, should be respectful of the decisions they make. Constantly calling them out for their decisions on internet chat boards is not a sign of respect. Rather than sounding grateful and gracious for all that they do for you, you end up sounding like a whiny JAP. Your insightful input regarding music and other topics is most welcome, but your continued whinyness about your parents has grown...tiresome.
Furthermore, being able to go to shows at rock clubs when you're 15 is not an entitlement. The fact that you're able to do so makes you luckier than 98% of the 15 year olds of the world...most kids that age don't live anywhere near a rock club so it's not even an option. Among those who do, I would imagine a significant percent of them have curfews that would prevent such late night activity. So feel fortunate that your parents have provided you with a life that lets you go to rock clubs at all.
Your pal,
Rhett.