The intimate bondage of tone-sequence and rhythm is grounded in the identity of their inner nature; both are varieties of the objective conditions of embodied expectation. It is not of the essence of music to satisfy explicit and conscious expectation--to satisfy the understanding. It meets on the contrary a subconscious, automatic need which becomes conscious only in the moment of its contenting. Every moment of progress in a beautiful melody is hailed like an instinctive action performed for the first time. Rhythm is the ideal satisfaction of attention in general with all its bodily concomitants and expressions. Tone-sequence is the satisfaction of attention directed to auditory demands. But the form-quality of rhythm, the form-quality of tonality, is an all but subconscious possession. Together, reinforcing each other in melody, they furnish the ideal arrangement of the most poignant of sense- stimulations. VI It is strange that those who would accept the general facts of musical logic as outlined above do not perceive that they have thereby cut away the ground from under the feet of the "natural language" argument. If the principle of choice in the progress of a melody is tone-relationship, the principle of choice cannot also be the cadences of the speaking voice. That musical intervals often RECALL the speaking voice is another matter, as we have said, and to this it may be added that they much more often do not. The question here is only of the primacy of the principle. Thus it would seem that the facts of musical structure constitute in themselves a refutation of the view we have disputed. To say that music arose in "heightened speech" is irrelevant; for the occasion of an aesthetic phenomenon is never its cause. It might as well be said that music arose in economic conditions,-- as indeed Grosse, in his "Anfange der Kunst," conclusively shows, without attempting to make this social occasion intrude into the nature of the phenomenon. Primitive decorative art arose in the imitation of the totemic or clan symbols, mostly animal forms; but we have seen that the aesthetic quality of the decoration is due to the demands of the eye, and appears fully only in the comparative degradation of the representative form. In exactly the same way might we consider the "degradation" of speech cadences into real music,--supposing this were really the origin of music. As a matter of fact, however, the best authorities seem to be agreed that the primitive "dance-song" was rather a monotonous, meaningless chant, and that the original pitch- elements were mechanically supplied by the first musical instruments; these being at first merely for noise, and becoming truly vibrating, sonorous bodies because they were more easily struck if they were hard or taut. The musical tones which these hard vibrating bodies gave out were the first determinations of pitch, and of the elements of the scale, which correspond to the