Driving a car in high traffic on the freeway, I listen to hard music. Why? Because it gets my adrenaline pumping and I'm more alert. I have never listened to music while riding a bike so far. I will probably try it, but I like the fact that I can hear a car coming up behind me and able to move to the side of the road to ride. If I had music on, I would have to look behind me quite often to make sure there are no cars coming. Music affects some people differently than others. Some it takes them into their own world, thus will probably be a distraction from riding, others its just something to go along with the ride. I really do not think it is for anyone to say whether or not this is wrong or right. Go by your own experience and comfort level. Remember there are bad drivers and being in the middle of the road when they come around isn't a wise idea.