Cyprian de Rore was born at Mecheln. He was Willaert's successor at St. Mark's in 1563, and died at Parma two years later. His originality was manifested in his madrigals, which became so popular that the Italians called him "Il divino." De Rore did not hesitate to use chromatic intervals, and boldly entered upon the new path which his teacher had merely pointed out. Considerable opposition was made to this innovation at first; but soon other bold masters, such as Orlando Lasso and Luca Marenzio, adopted chromatic intervals in their writings. These masters deserve the honor of having prepared the way for the modern system of major and minor keys and the chromatic scale. They did more toward the attainment of a newer and higher type of music than all the speculations of learned theorists and scholars had been able to accomplish.

De Rore's successor at St. Mark's was Giuseppe Zarlino, the greatest musical theorist of the sixteenth century. Zarlino's specialty was the theory of music rather than composition; hence, it is rather difficult to form any idea of his talent as a composer, from the few compositions that are at hand. His great work on the principles of music entitled "Istituzioni harmoniche" holds a very high place in musical literature. Before his day, musicians avoided the third in the last chord of the final cadence of a composition; all pieces ending either with the simple octave, or the octave with the fifth. Orlando Lasso was the first to adopt this innovation in practical music, but he did not extend it to the minor third, which was not used at the close of a piece until far into the eighteenth century.

Zarlino justified the use of major and minor thirds and sixths as concords, by his so-called diatonic system of "tempered intervals," which was an improvement on the pure-fifth system of Pythagoras. This new system recognized large and small whole tones in the series of intervals comprising the diatonic scale.

The foundation of modern organ-playing was laid at Venice. The most celebrated organ-players of the sixteenth century were offshoots of the Venetian school. With regard to organ music of the Venetian masters, it consisted of short pieces, the form resembling that of the modern prelude. Free running passages and broken chords, with now and then some hints of stricter counterpoint, were the characteristics of this music. The titles indicated greater variety than the contents. Some of them were named: Ricercari, Symphonia, Praeambula, Toccata, Capriccio, Intermezzo, Canzone, and so on.

Von Winterfeld, a celebrated German author, gives, in his masterly work, "Giovanni Gabrieli and his Age," the following complete list of the organists of St. Mark's: De Berghem, Parrabosco, Claudio Merulo and Andrea and Giovanni Gabrieli. These two last, Andrea and his nephew Giovanni, were the two greatest masters of the Venetian school.

Andrea Gabrieli was born in 1510, at Venice. He was appointed organist of the second organ at St. Mark's and held this position till his death (1586). He was a productive composer, and enriched church music by the accompaniments of various instruments. He was a remarkable organist, and was the teacher of Merulo, who was very famous as a composer and player on the organ.

Giovanni Gabrieli was born in 1540 and was appointed, in 1584, first organist at St. Mark's in place of Merulo. His genius was manifested in all branches of musical composition. His church music is as solemn and as elevated as that of Palestrina. Although he employed the church modes, he seemed to mould their rigid forms into a more modern expression than had hitherto been imparted to them. Ambros, another great musical historian says: "He prays and we pray with him." If we compare the same text with Palestrina, whose style is not less glorious, nor less elevating to the soul, we feel an immense difference; for Palestrina is the last purest sound of the older direction in music, while Gabrieli announces, in a wonderful manner, the coming musical emancipation of the individual. In unaccompanied vocal music he has never been equalled in the production of rich effects of musical coloring; in separating and massing together "choral harmonies." His compositions for two, three and four choruses are wonderful exhibitions of skill and judgment.

Giovanni della Croce was the last representative of the Venetian school, which died with him in 1609.

Florence, Naples, Bologna and Milan had also distinct polyphonic schools, all of which exercised a decided influence upon foreign schools, not only in their beginning but in their later development. Thus, the Venetian school had a great influence upon the schools of Nuremberg and Munich, the former founded by Hans Leo Hassler, a German, and the latter by the famous Netherlander, Orlando di Lasso (Roland de Lattre.) The influence extended even to Spain.

But these great workers were not destined long to enjoy that public favor which they so richly merited. New forms of composition and new means of expression were being carefully considered.