The Wave of the Semitone is generally employed when time, or syllabic quantity, is needed as an element in the expression of the language of complaint or pathos. The effect is much the same whether it be direct or indirect.

The Tremor may be used to express grief, supplication, tenderness, in which the interval through which it ranges may be wide, or, for a more plaintive effect, be limited to the semitone. With constituent intervals other than the semitone (that is, of a tone or otherwise), and ranging through an aggregate interval of less or greater width, it may be used to express laughter; as, for example, in the utterance of the syllables "ha, ha, ha, ha, ha," which, when rapidly effected, resembles one syllable uttered with discrete intervals. Combined with stress, aspiration, and guttural vibration, in suitable modifications, this laughing tone may be made to express scorn, derision, exultation, triumph, and so on.

II. Force. Force must be considered under two aspects: first, as to the degree of its intensity in the utterance of syllables, words, phrases, and sentences; and second, as to the form of its application in the utterance of the concrete. When the term is used without qualification, the first of these considerations is intended; when the second is intended, force is generally spoken of as stress.

Force must be contradistinguished from loudness. In mere loudness the vocal organs are comparatively relaxedthe intensity of sound being produced by the violent discharge of a great volume of air from the lungs. In forceful utterance the vocal organs are compressed and tense, and though the volume of air effused be small, the resulting sound-vibrations are strong, and distinct, and of penetrating power.

In respect of intensity, force may be manifested in infinite variation, but the degrees usually spoken of are very light, light, moderate, strong, and very strong. As with all other modes, these degrees will vary from word to word, and from sentence to sentence; and great judgment and taste must be exercised in employing them, so that they appropriately represent the intensity of the thought and feeling of which they are to be the expression.

Moderate Force is the natural expression of tranquillity, and, therefore, of all unimpassioned diction. As the diction becomes pervaded by the more positive emotions, the tones of the voice naturally become stronger. Certainty requires strong force with pure quality. So all the passions, the lighter as well as the more vehement, require the degree of force to be heightened: cheerfulness, joy, ecstacy, requiring force moderately strong; and anger, hate, terror, revenge, being suitably rendered by very strong force. Again, doubt, uncertainty, secrecy, as well as the gentler and more plaintive emotions, are most suitably represented by the lighter shades of force.

As the voice assumes the intenser modes of force, the vocal organs become more and more compressed, and utterance is more and more labored; the breath forced out cannot all be vocalized; the voice becomes less and less pure, and manifests itself in the aspirate and guttural qualities. Hence, strongly suppressed utterance in impure vocality, rather than mere loudness in pure vocality, is the appropriate expression for all the intenser passions.

III. Stress. Stress is force considered with respect of the form of its application to the concrete. Since the equable concrete is the natural colorless expression of unimpassioned thought, force applied to any part of it changes its character, and gives it a more or less significant emphasis. The three most usual forms of stress are the radical, the median, and the final; these may be effected in any of the degrees of force. Compound stress and thorough stress admit of but little variation.

Radical Stress, to some extent an essential, but not an expressive element in the equable concrete, is, in a somewhat stronger form, an element in all utterance that is intended to be vivid and energetic, emphasizing these characteristics by its own incisive clearness. The more animated and energetic the diction the clearer and more determined should be the opening of the concrete, that is, the more distinct and forcible should be its radical stress; while in graver language the radical stress is less pronounced. In its emphatic degree it ought at no time to be allowed to become a current mode, imparting its peculiar incisive character to every syllable; though, for especial emphasis, it may be appropriately used in this way in the utterance of the several words of a phrase.

Final Stress differs from radical stress principally in this, that while it equally indicates energy and positiveness, it does so as in accordance with predetermination and reflection. Radical stress denotes, as it were, an involuntary state of energy; final stress, the energy or fixedness of resolve. Hence, final stress is appropriate to the expression of resolution, of obstinacy, of earnest conviction, of passionate resolve. It emphasizes the characteristics of wide intervals, giving to rising intonations a more decidedly interrogatory character, and making falling intonations more vehemently and passionately positive.