Jazz as a genre is more complex than virtually any other genre of music. It employs more subtle and more complex harmonies which are usually not used anywhere e

Jazz as a genre is more complex than virtually any other genre of music. It employs more subtle and more complex harmonies which are usually not used anywhere else, neither are seen in music textbooks. Plus improvisation which essentially is composing on the fly - something not every musician is capable of keeping up and not every listener is capable of understanding. In other words (and this shouldn't be news) jazz is a language that you need to learn in order to enjoy it. That's the point of the article. (Some parts of jazz though are pretty "accessible", such as Billie and Nina, but if you forget about the lyrics and the emotional side of their art and leave only the music, that for the most part wouldn't be a good example of jazz.)