Music could say a lot about the person listening to it, depending on what it is.
I don't know, but I took a quiz to see what my music tastes said about me. You can take it here.
72% enjoys reflective and complex music
73% enjoys edgy and aggressive music
58% enjoys fun and simple music
18% enjoys energetic and upbeat music
"People with high scores on the energetic and aggressive music-preference dimension tend to enjoy taking risks and engaging in thrilling experiences. They also tend to be dominant, imaginative, and energetic. They tend to be politically liberal, and believe that freedom, independence, and excitement are important aspects of life. When it comes to lifestyle, lovers of edgy and aggressive music, tend to come from the middle to lower classes. As for media entertainment, they're likely to enjoy watching action, science fiction, fantasy, war, and horror movies." - Quite accurate for me.