I confess, I am a blogger with music on my craft blog. One time I took it off and someone emailed me to ask where it went too.
Anyway, often music on blogs annoys me too
believe it or not, but that wouldn't make me NOT go to a blog I liked. I just choose to turn their music player off, or turn down my speakers. It's easily done with a click of the mouse on their music player..that same click that you would make to leave the site for another because of the annoying music.
So anyway, to answer the question of why I put it on there? Cause I like it. For me, that music on my blog is the same music I stamp too....why not share it? But just for you (meaning those surfers who don't like it, not just the OP) and just for this week, I will have a music free crafting blog.
I'm sure I've caused people to jump when they've gone to my blog lol