In this picture you see one of The Beatles, Gorge Harrison in India next to a man playing the sitar.



  http://blogs.longwood.edu/musicintheworld/2012/01/24/the-four-components-of-music-culture/

This article talks about how music is all around the world. Even if its not someone playing an instrument, it can be the surroundings of out side like cars on the freeway, or dogs parking at the park. Music isn't just something that you can play, it's not a note on a piece of paper, it can be any surrounding sounds.