We are now to enter into an inquiry concerning harmony and rhythm; whether all sorts of these are to be employed in education, or whether some peculiar ones are to be selected; and also whether we should give the same directions to those who are engaged in music as part of education, or whether there is something different from these two. Now, as all music consists in melody and rhythm, we ought not to be unacquainted with the power which each of these has in education; and whether we should rather choose music in which melody prevails, or rhythm: but when I consider how many things have been well written upon these subjects, not only by some musicians of the present age, but also by some philosophers who are perfectly skilled in that part of music which belongs to education; we will refer those who desire a very particular knowledge therein to those writers, and shall only treat of it in general terms, without descending to particulars. Melody is divided by some philosophers, whose notions we approve of, into moral, practical, and that which fills the mind with enthusiasm: they also allot to each of these a particular kind of harmony which naturally corresponds therewith: and we say that music should not be applied to one purpose only, but many; both for instruction and purifying the soul (now I use the word purifying at present without any explanation, but shall speak more at large of it in my Poetics); and, in the third place, as an agreeable manner of spending the time and a relaxation from the uneasiness of the mind. [1342a] It is evident that all harmonies are to be used; but not for all purposes; but the most moral in education: but to please the ear, when others play, the most active and enthusiastic; for that passion which is to be found very strong in some souls is to be met with also in all; but the difference in different persons consists in its being in a less or greater degree, as pity, fear, and enthusiasm also; which latter is so powerful in some as to overpower the soul: and yet we see those persons, by the application of sacred music to soothe their mind, rendered as sedate and composed as if they had employed the art of the physician: and this must necessarily happen to the compassionate, the fearful, and all those who are subdued by their passions: nay, all persons, as far as they are affected with those passions, admit of the same cure, and are restored to tranquillity with pleasure. In the same manner, all music which has the power of purifying the soul affords a harmless pleasure to man. Such, therefore, should be the harmony and such the music which those who contend with each other in the theatre should exhibit: but as the audience is composed of two sorts of people, the free and the well-instructed, the rude the mean mechanics, and hired servants, and a long collection of the like, there must be some music and some spectacles to please and soothe them; for as their minds are as it were perverted from their natural habits, so also is there an unnatural harmony, and overcharged music which is accommodated to their taste: but what is according to nature gives pleasure to every one, therefore those who are to contend upon the theatre should be allowed to use this species of music. But in education ethic melody and ethic harmony should be used, which is the Doric, as we have already said, or any other which those philosophers who are skilful in that music which is to be employed in education shall approve of. But Socrates, in Plato's Republic, is very wrong when he [1342b] permits only the Phrygian music to be used as well as the Doric, particularly as amongst other instruments he banishes the flute; for the Phrygian music has the same power in harmony as the flute has amongst the instruments; for they are both pathetic and raise the mind: and this the practice of the poets proves; for in their bacchanal songs, or whenever they describe any violent emotions of the mind, the flute is the instrument they chiefly use: and the Phrygian harmony is most suitable to these subjects. Now, that the dithyrambic measure is Phrygian is allowed by general consent; and those who are conversant in studies of this sort bring many proofs of it; as, for instance, when Philoxenus endeavoured to compose dithyrambic music for Doric harmony, he naturally fell back again into Phrygian, as being fittest for that purpose; as every one indeed agrees, that the Doric music is most serious, and fittest to inspire courage: and, as we always commend the middle as being between the two extremes, and the Doric has this relation with respect to other harmonies, it is evident that is what the youth ought to be instructed in. There are two things to be taken into consideration, both what is possible and what is proper; every one then should chiefly endeavour to attain those things which contain both these qualities: but this is to be regulated by different times of life; for instance, it is not easy for those who are advanced in years to sing such pieces of music as require very high notes, for nature points out to them those which are gentle and require little strength of voice (for which reason some who are skilful in music justly find fault with Socrates for forbidding the youth to be instructed in gentle harmony; as if, like wine, it would make them drunk, whereas the effect of that is to render men bacchanals, and not make them languid): these therefore are what should employ those who are grown old. Moreover, if there is any harmony which is proper for a child's age, as being at the same time elegant and instructive, as the Lydian of all others seems chiefly to be-These then are as it were the three boundaries of education, moderation, possibility, and decorum.