I know. It sounds absurd. But musical taste tells a lot about person. Once I dated a guy that I thought shared my musical taste and also expanded my music library with really great selections. Then I realized that he was actually into bad 90's emo music and really lame edm. The music he shared with me was usurped from the other women he was dating at the same time. I wish I could get their numbers from him, they all had great taste. In music. He was a total douchebag.