Actually I do have clue what you're talking about, it just doesn't bother me that much

I dabble into music production myself so I'm well aware of aural spectrums and all, and how mp3's kinda mess with that.
I don't know if it's "obsessed"... but I used to listen to music a lot in my teens. It went beyond putting a cd on. I read on about it, looked into composition, was in a few bands in the past, play instruments myself, so music is a part of my life and who I am, even if it's a personal creative outlet. Currently I'm not really too thrilled about music... might have by off phase right now.
Music, and especially "loud" music is the sole reason I go to (goth)raves. I enjoy listening to it really loud (as in feeling the bass in my body), and as such I don't interact with anyone, and just indulge on the music.
Regarding music styles I've had my share of styles I went into. Mostly it's a "broader" spectrum of rock and metal music, a fair share of electronic music, ambient, drum and bass, dubstep and whatever you have. The "classics" I can appreciate, but I have to be in a mood for those... and the same goes for time specific music... last week I had a small New wave mood and listened to nothing but that kind of music for 2 days, then I was like "ok... I heard it, let's go on to something else"... I seem to have heard things "way too fast" (looking at my last.fm page, the one song I played most in the last 2 years since I've been on there, I play 60 times... which isn't nearly as obsessive as some people, who have played it thousands of times)... and to add, I'm more interested in sound design, which synthesizer they used, how they tweaked sound X and stuff like that... and with current media I'm having a blast in understanding sound design since there's a lot of tutorials on it.
I do have a thing for music that doesn't sound right to me. If a song messes up... because I feel the harmony is off, the lyrics are terrible, things like that... the song is on my banlist. I'll never listen to it again.
So... I don't know.. does it qualify as "obsessed"?