§ 9. Let him be moderately severe, making himself fear'd, but not hated. I know, it is not easy to find the Mean between Severity and Mildness, but I know also, that both Extremes are bad: Too great Severity creates Stubbornness, and too great Mildness Contempt.

§ 10. I shall not speak of the Knowledge of the Notes, of their Value, of Time, of Pauses, of the Accidents, nor of other such trivial Beginnings, because they are generally known.

§ 11. Besides the C Cliff, let the Scholar be instructed in all the other Cliffs, and in all their Situations, that he may not be liable to what often happens to some Singers, who, in Compositions Alla Capella,[6] know not how to distinguish the Mi from the Fa, without the Help of the Organ, for want of the Knowledge of the G Cliff; from whence such Discordancies arise in divine Service, that it is a Shame for those who grow old in their Ignorance. I must be so sincere to declare, that whoever does not give such essential Instructions, transgresses out of Omission, or out of Ignorance.[7]

§ 12. Next let him learn to read those in B Molle, especially in those[8] Compositions that have four Flats at the Cliff, and which on the sixth of the Bass require for the most part an accidental Flat, that the Scholar may find in them the Mi, which is not so easy to one who has studied but little, and thinks that all the Notes with a Flat are called Fa: for if that were true, it would be superfluous that the Notes should be six, when five of them have the same Denomination. The French use seven, and, by that additional Name, save their scholars the Trouble of learning the Mutations ascending or descending; but we Italians have but Ut, Re, Mi, Fa, Sol, La; Notes which equally suffice throughout all the Keys, to one who knows how to read them.[9]

§ 13. Let the Master do his utmost, to make the Scholar hit and sound the Notes perfectly in Tune in Sol-Fa-ing. One, who has not a good Ear, should not undertake either to instruct, or to sing; it being intolerable to hear a Voice perpetually rise and fall discordantly. Let the Instructor reflect on it; for one that sings out of Tune loses all his other Perfections. I can truly say, that, except in some few Professors, that modern Intonation is very bad.

§ 14. In the Sol-Fa-ing, let him endeavour to gain by Degrees the high Notes, that by the Help of this Exercise he may acquire as much Compass of the Voice as possible. Let him take care, however, that the higher the Notes, the more it is necessary to touch them with Softness, to avoid Screaming.

§ 15. He ought to make him hit the Semitones according to the true Rules. Every one knows not that there is a Semitone Major and Minor,[10] because the Difference cannot be known by an Organ or Harpsichord, if the Keys of the Instrument are not split. A Tone, that gradually passes to another, is divided into nine almost imperceptible Intervals, which are called Comma's, five of which constitute the Semitone Major, and four the Minor. Some are of Opinion, that there are no more than seven, and that the greatest Number of the one half constitutes the first, and the less the second; but this does not satisfy my weak Understanding, for the Ear would find no Difficulty to distinguish the seventh part of a Tone; whereas it meets with a very great one to distinguish the ninth. If one were continually to sing only to those abovemention'd Instruments, this Knowledge might be unnecessary; but since the time that Composers introduced the Custom of crowding the Opera's with a vast Number of Songs accompanied with Bow Instruments, it becomes so necessary, that if a Soprano was to sing D sharp, like E flat, a nice Ear will find he is out of Tune, because this last rises. Whoever is not satisfied in this, let him read those Authors who treat of it, and let him consult the best Performers on the Violin. In the middle parts, however, it is not so easy to distinguish the Difference; tho' I am of Opinion, that every thing that is divisible, is to be distinguished. Of these two Semitones, I'll speak more amply in the Chapter of the Appoggiatura, that the one may not be confounded with the other.

§ 16. Let him teach the Scholar to hit the Intonation of any Interval in the Scale perfectly and readily, and keep him strictly to this important Lesson, if he is desirous he should sing with Readiness in a short time.

§ 17. If the Master does not understand Composition, let him provide himself with good Examples of Sol-Fa-ing in divers Stiles, which insensibly lead from the most easy to the more difficult, according as he finds the Scholar improves; with this Caution, that however difficult, they may be always natural and agreeable, to induce the Scholar to study with Pleasure.

§ 18. Let the Master attend with great Care to the Voice of the Scholar, which, whether it be di Petto, or di Testa, should always come forth neat and clear, without passing thro' the Nose, or being choaked in the Throat; which are two the most horrible Defects in a Singer, and past all Remedy if once grown into a Habit[11].