With the ‘unending melody,’ the second of Wagner’s tenets, it is the same as with the _leit-motif_. It is a product of degenerate thought; it is musical mysticism. It is the form in which incapacity for attention shows itself in music. In painting, attention leads to composition; the absence of it to a uniformly photographic treatment of the whole field of vision as with the pre-Raphaelites. In poetry, attention results in clearness of ideas, consistency of statement, the suppression of the unimportant, and the giving emphasis to the essential; its absence leads to twaddle as with the graphomaniacs, and to a painful prolixity in consequence of the indiscriminate recording of all perceptions as with Tolstoi. Finally, in music attention expresses itself in completed forms, _i.e._, in well-defined melodies; its absence, on the contrary, by the dissolution of form, the obliteration of its boundary lines, and thus by unending melodies as with Wagner. This parallelism is not an arbitrary play of ideas, but an exact picture of the corresponding mental processes among the different groups of degenerate subjects, producing in the different arts different manifestations according to their specific means and aims. Let us grasp what melody is. It is the regular grouping of notes in a highly expressive series of tones. Melody in music corresponds to what in language is a logically-constructed sentence, distinctly presenting an idea, and having a clearly-marked beginning and ending. The dreamy rambling of half-formed nebulous thoughts as little allows the mintage of sentences of this kind, as does the fleeting agitation of the vague bewildered emotion lead to the composition of a melody. The emotions, too, have their own grades of distinctness. They, too, can appear as chaotic, or as well-regulated states. In the one case they stand out in the consciousness which grasps their composition and their purpose as discriminable modes strongly illuminated by the attention; in the other case they are a disturbing enigma to consciousness, and perceived by it merely as a generic excitement, as a sort of subterranean trembling and rumbling of unknown origin and tendency. If the emotions are intelligible, they will be fain to manifest themselves in a form at once the most expressive and most easily grasped. If, on the contrary, they are a generic continuous state, without determined cause and discoverable aim, the music presenting them to the senses will be as blurred and as nebulously fluctuating in form as themselves. Melody may be said to be an effort of music to say something definite. It is clear that an emotion unconscious of its cause and its aims, and unilluminated by attention, will not raise its musical expression to the height of melody, precisely because it has nothing definite to say.