Music listening

I think that music listening will affect me because everywhere you go there is some type of music playing. Like on the radio and on TV, all of those songs and the music must be licensed. I only use music for videos in this class. Sometimes I listen to Youtube if I get bored at school, but outside of school I usually listen to the radio or watch music videos on GMC, but I never realized how it was to copyright a song or music. In today's world music is in a lot of places which makes the music world even more confusing.