(Please do not answer with "because I like it" [or similar] as this is not helpful to me, and does not tell anyone why you listen to music to any useful degree).
I can see why you've asked people not to give this reason, but the more I've mulled it over, the more I've come to the conclusion that it's a little silly not to want this response - it's as good a reason as any, and when it comes down to it, it's the underlying reason behind why anyone listens to music at all.
I listen to music for many, many reasons, but the main one, the reason behind the reasons, the thing that makes me want to put the tunes on is... because I like it. It makes me feel good.
It cheers me up when I'm sad, it calms me down when I'm stressed, it makes me remember happier times when I'm feeling alone, it reminds me that life can be beautiful.
But all those reasons, when you pare them down, fall into the exact reason you asked not to hear - 'because I like it'.
So basically, I think it really is useful to you to hear that, because you're not really going to 'understand' why anyone likes music. You don't really need to understand, and if you just don't get it, you never will get it.
I'll never get why people like football, they'll never be able to make me like it, and I'll always think it's a ridiculous game. The best answer someone could give me if I asked them why they play/watch/talk about football is 'because I like it'.
I suppose what I'm trying to say is, if you don't understand
why people like it, you may just have to settle for understanding
that they like it.
I'm going to read the thread now, and presumably find plenty of people saying what I've tried to say here, but much better. I only got a few posts in before I decided to post.