Well I was waiting for Hiss's reply on this (I already know what it is
) but I'll go for it anyway.
My dad grew up with the heaviest music that was around in his day (60's and 70's). He was into bands like The Beatles, Black Sabbath, The Who, Deep Purple, and lots of prog stuff like King Crimson, Genesis, Emerson Lake & Palmer, Camel. He was even at the 1974 California Jam Festival (ELP, Black Sabbath, Deep Purple). Anyway it was easy to get him into some things like the more mainstream Metallica and Iron Maiden stuff, some of Dream Theater (James LaBrie annoys him though... I can see why but I like JLB nonetheless) and Savatage (Edge Of Thorns mainly).
My mom isn't really into music, she listens to radio a lot and she likes all the pop hits but she is neutral to metal, doesn't look like she cares, and I'm totally OK with that. She buys me any CD I ask for when she goes abroad and she only tells me to turn it down when it's late.
I regularly blast out any kinds of metal from classic heavy metal to thrash, death and black metal, and I never really get complaints about the music itself. I could be "blasting" Beatles and I wouldn't get any less complaints.
My brother is into anything from classical to pop to hard rock. He unfortunately has been getting into some crappy nu-metal bands lately (I say crappy because *shock* there actually are one or two good ones). He likes a lot of what I like to call "lesbian rock". I.e. Alanis Morrissette, Sheryl Crow, this kind of stuff. Dunno why I call it lesbian rock but it just sounds lesbian
. He is a bit religious so he gave me a lot of shit when he saw a Rotting Christ CD I bought but he won't do anything crazy like take away my CD, he'll just bust my balls about it. He has a loathing for modern progressive metal because he thinks that it's a misuse of the word "progressive" and that the bans actually don't deserve this prized "prog" label. I managed to convince him that Dream Theater are progressive but he thinks bands like Symphony X, Queensryche, Savatage and even Rush aren't even close to progressive.
My dad gives me a lot of shit for buying TONS of CDs... and he's right, I buy tons of 'em, I must have bought about 30 of them so far this year. I think I have a little over 200 albums right now. I have a serious space problem in my room, there are CDs all over the place. But I don't care, for now I'd like to build up a nice CD collection and if I ever get bored of a particular band, I can always sell the cds and get at least half the money back.