Some cats love music and some hate it, they also have a preference with genres. My first cat Midnight would tolerate listening to loud music in the house. He liked to sleep on my old speakers because there would be soft vibrations. His favorite music was classic rock, especially ballads. He never really liked the country music but he would tolerate some pop music like NSYNC.
Midnight's sister, Honey, and the kittens my mom adopted later, Tigger and Piglet, only liked the music when it was quiet. I could play any genre as long as it was soft and slow. If it became a fast song or to loud they would simply leave the room.
The last cats I had were brothers, Tony and Drew. Drew was usually the more social brother and my mom's favorite. He was a cuddle monster until you played music. Country and pop music only and it had to be quiet, like might as well be off it's so quiet. So he stayed out of my room the majority of the time. His more elusive and shy brother Tony had not issue with my play list. I could even get away with playing it pretty loud before he would want to leave. I could play classic rock, metal, punk, country, pop, k-pop, instrumental, dubstep, and every other genre. He would simply chill out by my feet or on my bed with is tummy out and purring. So I can see cats being mellowed out by music but each cat has a different tolerance for it.
