I share all of your feelings. I used to "suppress" my love of music by decorating my house in a more conventional decor, but as I have gotten older I embraced my passion because, after all, I have had it since I was a child and it is a part of me, a big part, and denying it is like denying myself.
I currently have some posters in my living room but try to use the more "artistic" pieces there. However, my guest bedroom is decorated like a room at the Hard Rock hotel, with framed posters, 8x10's and memoribilia all around.
I just recently purchased a new home and one of the rooms will be my office/music room and you better believe it will be adorned for sure---I am more excited about decorating that room than I am the others, even with the brand new kitchen appliances et al
I also have a "rock-n-roll" jeans jacket with buttons, patches etc that I wear, and many concert tshirts.
My car has some buttons stuck in the header, including a pic of Japan and one of David.
Some nights at work I take my music dvds in and have them playing while I work. I have turned my coworker onto Japan/Sylvian and it is so cute to hear her hum along
