What is the theme in Psychotic Reactions and Carburetor Dung by Lester Bangs?

Music is the most important thing in the world to Bangs, and rock and roll is his favorite kind of music. However, he does not like all, or even most, of what is labeled rock and roll. For Bangs, rock should not be overly complicated because it is not the technical skill of the musician that determines the quality of a rock song as it is in jazz. In fact, Bangs often embraces bands that lack technical skill or even proficiency because they are forced to rely solely on their emotion to make great music. Furthermore, Bangs enjoys watching bands progress from unskilled to skilled as they mature.