I'm in my forties and have been a musician, since my teens.
I love most styles and have had the benefit of playing most in my career.
Loud has definitely it's place in music, and I've found my age has made no difference whatsoever to the volume, style and fullness of what I listen to. If I end up deaf in my old age, most likely the volume will be turned up, not down!
I have written soft new age type instrumentals to heavy rock ballads and performed both with various bands etc.
As with most, very often my mood will dictate what music and how loud I play/listen to it, too.
Lol, my friends and I are even thinking of buying tickets to see Ozzy Osbourne in March '08. (And I bet more than half the audience will be my generation!)

Hope this helps in giving you a broader perspective of older people and Loud music, underestimatedGEM  

Beck rules....he's a real artist in a sea of commercial crap.
It's hard to find good, smart pop music.

I couldn't view your other links though :-(

loud is good  i dont listen to anything with the volume low  .but i like all music from a to z    music is energy listen and feel its power

I love all types of music......I think it all has its place.

The only music i really can not stand is heavy metal....I love alot of the 80's music,id rather boogie to that than some of the new stuff these days....

take a look at Zero 7's music