And, if single notes may give pleasure, how much more a number of them. It is when a number of them are combined into a composition that a harmony is produced. The musician creates a harmony of sound, the painter a harmony of color. The secret of a harmony is the relation that the separate notes of sound or color in it bear to one another. If I try to explain this, it is not because I wish to tell you how to make a color harmony, but because I hope the explanation may help you to enjoy it. Perhaps we may get an idea of what relation means if we think of a football team. It consists of a number of individuals with separate duties. Some play forward, others half-back, quarter-back, and so on. When each member not only does his own work as well as possible but plays well into the hands of the other members, we speak of the excellence of the team work. And in nine cases out of ten it is not brilliant individual play, but fine all-round team-work that wins the game. The different members are so well related to one another, that the whole team works harmoniously.