one Franco, a German of Cologne, who lived towards the end of the eleventh century. Some, however, attribute this improvement to John de Murs. The division of one note into others of less value was invented, in the sixteenth century, by Jean Mouton, chapel-master to King Francis I. of France.

15. The knowledge of music, as a science, was preserved in Europe, after the overthrow of the Western empire, through the influence of the Church. The apostles, and Hebrew converts generally, had been accustomed to the sacred music of the Jews; and, on this account, it was easy to continue the use of the same psalms and hymns in the Christian Church.

16. Many of the Grecian and Roman melodies were also set to words adapted to Christian worship. In regard to the manner of singing, in the early days of the Church, it was sometimes in solo, sometimes in alternate strains, and at other times in chorus; in which the whole assembly joined, repeating what had been before sung or read. In the fourth century, with the view of securing the proper execution of this part of divine worship, precentors were instituted, who were considered regular officers of the Church.

17. Pope Gregory I., surnamed the Great, distinguished himself by establishing a new singing-school, which became a model for many others, in the western division of the Church. In consequence of these schools, the singing became more artificial; and this, together with the circumstance that the hymns were in Latin, which had become obsolete, at length excluded the people from any participation in this part of the public worship.

18. Gregory also made a selection of the existing songs of the Church, and introduced a chant, which, through his influence, and that of his successors, was at length extended throughout Europe. It received the appellation of the Gregorian chant from his name. It was also called the choral song, because it was sung by a choir. This chant is said to be the foundation of our present church-music.

19. Music, in distinct parts, was not known until after the introduction of the improved method of writing music, invented, as before stated, by Guido Aretine and Franco. The development of harmony, in four parts, was assisted by the choral; but it was more particularly advanced by musical instruments, and especially by the organ. In the fifteenth century, music began again to be treated scientifically.

20. The Reformation produced great changes in the character of sacred music. Before that event took place, this part of religious worship was confined to a few fixed forms of texts, as in the mass, and this is still the case in the Roman Catholic Church; but the Protestants allow great variety both in the poetry and music. Luther's agency in the production of these changes was very considerable. During the seventeenth and eighteenth centuries, church music became continually more brilliant, and always more corrupted, by the intermixture of profane music.

21. In the sixteenth and seventeenth centuries, there grew up, at the courts of the European monarchs, the free chamber style, from which arose that which was afterwards used in the theatre. The opera, which originated with three young noblemen at Florence in 1594, has contributed especially to the splendor and variety of modern vocal music, the advancement of which is claimed particularly by the Italians, as that of the instrumental kind is claimed by the Germans and French.

22. The composition of music, and its execution either vocally or instrumentally, as well as the business of imparting a knowledge of it to others, are embraced in the employment of the musician; although it is seldom, that all these branches are practised by one and the same individual. Music is one of the fine arts, and, during the middle ages, was one of the branches of what was then considered a learned education.

23. Since the scientific revival of music, the art has had so many distinguished professors, that we will not even attempt to give a list of their names. Their number was increased, and the art greatly perfected, by the singing-schools, called conservatories, established especially in Italy, either at the public expense, or by the liberality of individuals.

MUSICAL INSTRUMENT-MAKER.

1. This artist unites in his business some of the operations of the cabinet-maker, turner, and brazier. He also is dependent upon the wire-drawer, and the tanner and currier, for some of his materials. So great, however, is the number of musical instruments, and so different their nature and construction, that the business of making them is divided into several branches, all of which are never pursued, or carried on, by one person. But, without reference to the several divisions of this business, we will proceed to mention or describe the principal instruments which are now in most common use.

2. The organ is the largest of all musical instruments, and, in its improved state, so complex that a mere description of it cannot be well understood. Nevertheless, we will endeavor to give the reader some idea of the general principles on which it is constructed.

3. The most essential and prominent parts of this machine are the wind-chest, the pipes, and the bellows. The former of these is an oblong box, made perfectly air-tight, and placed in a horizontal position. The top of this chest is perforated with several rows of holes of different sizes, and into these are inserted the pipes. Those for the higher notes are of a cylindrical form, and are made of a mixture of metals, chiefly of tin and lead; but those designed for the expression of the lowest notes of the base are made of wood, in a square form. The dimensions of these pipes are regulated by a diapason, or scale.

4. There are as many of these rows of pipes, which are called stops, as there are kinds of tones in the organ; and to every row or stop is a plug, attached to a slide, which is denominated a register, and which is designed to regulate the admission of wind into the pipes. The pipes are also furnished with valves, which can be opened at pleasure, by means of keys similar to those of the piano-forte. Some organs have few, others have many stops; and, in order to regulate the force of sound, most church organs have two or three rows of keys, whereby a greater or less number of pipes may be filled, and the powers of the instrument may be controlled in what is called the small organ, or let loose, so as to become the full organ.

5. The fingering of an organ is similar to that of the piano-forte, so far as relates to the position of the keys; but, on account of the great number of holding notes in organ music, and the manner in which the sound is produced, the fingers are more kept down; whence it is considered injurious for performers on the piano-forte to practise on the organ, lest that lightness of touch, so necessary for the former instrument, be affected. It is hardly necessary to remark that, during the performance on the organ, the wind-chest is filled by means of the bellows.

6. The structure of the organ is lofty, elegant, and majestic; and its solemnity, grandeur, and volume of tone, have obtained for it a pre-eminence over every other instrument for the sacred purposes to which it has been applied. The largest organ known is in St. Peter's Church, at Rome. It has one hundred stops.

7. The church organ was probably suggested by the water organ of the Greeks, which was invented five or six hundred years before our era. At what period, organs began to be employed in churches, cannot now be ascertained. By some, it is said that Pope Vitelianus