I wish I listened to music while riding. But there is no radio at the barn and I was told the owner doesn't like head phones, so in the quiet it is. I'd range from country to rock if I could listen though.
When I was still at my parent's I would have the radio playing while riding my last horse. She would always drift towards the radio and stop whenever Red Hot Chili Peppers came on.
My cat has a preference too... if I have to take her anywhere she freaks out in the car, unless I'm playing Dierks Bentley. Then she falls right asleep.
And Allison, when I was younger, like way younger, and still ran around the yard pretending to be a horse, I would jump a random yard junk course whenever that song came on in my dad's shop. I always wanted to jump a horse to it, but alas, I went the western route.