The amount and kind of pleasure which music gives him are frequently as much beyond his understanding and control as they are beyond the understanding and control of the man who sits beside him. They are consequences of just that particular combination of material and spiritual elements, just that blending of muscular, nervous, and cerebral tissues, which make him what he is, which segregate him as an individual from the mass of humanity. We speak of persons as susceptible or insusceptible to music as we speak of good and poor conductors of electricity; and the analogy implied here is particularly apt and striking. If we were still using the scientific terms of a few decades ago I should say that a musical fluid might yet be discovered and its laws correlated with those of heat, light, and electricity. Like them, when reduced to its lowest terms, music is a form of motion, and it should not be difficult on this analogy to construct a theory which would account for the physical phenomena which accompany the hearing of music in some persons, such as the recession of blood from the face, or an equally sudden suffusion of the same veins, a contraction of the scalp accompanied by chilliness or a prickling sensation, or that roughness of the skin called goose-flesh, "flesh moved by an idea, flesh horripilated by a thought."🏁

The amount and kind of pleasure which music gives him are frequently as much beyond his understanding and control as they are beyond the understanding and control of the man who sits beside him. They are consequences of just that particular combination of material and spiritual elements, just that blending of muscular, nervous, and cerebral tissues, which make him what he is, which segregate him as an individual from the mass of humanity. We speak of persons as susceptible or insusceptible to music as we speak of good and poor conductors of electricity; and the analogy implied here is particularly apt and striking. If we were still using the scientific terms of a few decades ago I should say that a musical fluid might yet be discovered and its laws correlated with those of heat, light, and electricity. Like them, when reduced to its lowest terms, music is a form of motion, and it should not be difficult on this analogy to construct a theory which would account for the physical phenomena which accompany the hearing of music in some persons, such as the recession of blood from the face, or an equally sudden suffusion of the same veins, a contraction of the scalp accompanied by chilliness or a prickling sensation, or that roughness of the skin called goose-flesh, "flesh moved by an idea, flesh horripilated by a thought."🏁