Very good point. I think we can both agree that a great composition, both smart and understandable for general public, may be quite simple to perform. On the ot

Very good point. I think we can both agree that a great composition, both smart and understandable for general public, may be quite simple to perform. On the other hand, sometimes poor composition may be somehow hidden under the layer of the great performer's skills. Not only a jazz problem, btw. As you noticed correctly, it is also quite common for rock bands and, I believe, classical music is affected as well. The balance is the key. Let me once again mention Sting here. I know I may be quite obsessive with this guy, but he really seems to be the one who found this balance. Always sort of bugged me )