The notation of western music needs a serious upgrade. Or more people should be made aware of the other types of notation out there such as graphic scores. I think programmers would really dig coming up with their own notation to favor a certain aspect of music they would like to bring out. For example, western classical (the usual notation everyone thinks of as musical notation that isn't a lead sheet) notation isn't so great for having the result come out all that much differently each time. It is a kind of "paint by numbers" that favors the composer who wrote it. Other types put more responsibility on the player. I think novice musicians are not encouraged to think in these ways that can be tremendously inspirational from an educational standpoint.