If the emotions be unequal in force, the stronger after a conflict will extinguish the weaker. Thus the loss of a house by fire or of a sum of money by bankruptcy, will make no figure in opposition to the birth of a long-expected son, who is to inherit an opulent fortune. After some slight vibrations, the mind settles in joy, and the loss is forgot. The foregoing observations, will be found of great use in the fine arts. Many practical rules are derived from them, which I shall have occasion afterward to mention. For instant satisfaction in part, I propose to show the use of these observations in music, a theme I insist upon at present, not being certain of another opportunity more favourable. It will be admitted, that no combination of sounds but what is agreeable to the ear, is intitled to the name of music. Melody and harmony are separately agreeable and in union delightful. The agreeableness of vocal music differs from that of instrumental. The former being intended to accompany words, ought to be expressive of the sentiment that is conveyed by the words. But the latter having no connection with words, may be agreeable without expressing any sentiment. Harmony properly so called, though delightful when in perfection, is not expressive of sentiment; and we often find good melody without the least tincture of it. These preliminaries being established, I proceed directly to the point. In vocal music, the intimate connection of sense and sound rejects dissimilar emotions, those especially that are opposite. Similar emotions produced by the sense and sound go naturally into union; and at the same time are felt to be concordant or harmonious. Dissimilar emotions, on the other hand, forced into union by causes intimately connected, not only obscure each other, but are also unpleasant by discordance. From these principles it is easy to say what sort of poetical compositions are fitted for music. It is evident that no poem expressing the sentiments of any disagreeable passion is proper. The pain a man feels who is actuated with malice or unjust revenge, disqualifies him for relishing music or any thing that is entertaining. And supposing him disposed, against nature, to vent his sentiments in music, the mixture would be unpleasant; for these passions raise disgust and aversion in the audience[39], a tone of mind opposite to every emotion that music can inspire. A man seized with remorse cannot bear music, because every sort of it must be discordant with his tone of mind; and when these by an unskilful artist are forced into union, the mixture is unpleasant to the audience.