What shall i write about?

I have been thinking about what i could write and I guess i could evaluate some sort of music. It doesn't matter what kind, i love music. I do critique it and sometimes wish the musicians and singers had some real talent but thats not the point. The point is music is a way to explain feelings. Sometimes its easier to listen to a song than do anything else. Music can bring out all my emotions in just a couple of minutes. Whether it is calming me down or pumping me up. I love music, but what am i gonna evaluate?