Monteverde's position in the world of art might almost be designated as that of "father of the opera." For, while it is true that he did not himself directly discover this great form of applied music, he certainly was the first to produce dramatic works characterized by the same general ideas as those which prevail at the present day. The connection of Jacopo Peri with opera was altogether fleeting and temporary, having been limited to the two works already mentioned. Monteverde, who was already a vigorous and fully established musician and composer at the time of Peri's first attempt, took hold of the new art form with such vigor and readiness, and with such truth of insight, that he must always stand in the place of honor. Peri's conception of the musical part of opera was rather small and limited. What he sought was a truthful declamation of the text in the matter of cadence and emphasis. To this Monteverde added a deeper insight into the feeling pervading the dramatic situation. This gave the key-note to his music, whether that of the voices, or of voices and instruments together. This honor belongs still more incontestably to Monteverde when it is remembered what innovations he made in the general points of musical structure and instrumentation, both of which place his fame in the strongest possible light as that of a master. In his earliest canzonettas the defects are those of a half-taught composer, rather than of one deliberately marking out a new path. But in the third book of madrigals there are innovations which have been pointed out by all critical writers upon the history of harmony, especially by Choron and Fétis. In the madrigal "Stracciami pur il côre" (the music of which is given entire in Burney's "History of Music," Vol. III.), the rhythm has more movement, the metrical form is better, there are natural cadences, and prolonged dissonances of a materially different character to anything preceding them. Fétis mentions, at the words _non puo morir d'amore_, double dissonances, arising by suspension of 9--4, 9--7--4, 6--5--4, the latter having an extremely disagreeable effect. Modern tonality is anticipated by the use of the leading tone. In his fifth book of madrigals he gives free rein to his ideas, and introduces dissonances without preparation, especially the seventh and ninth on the dominant. There is also a diminished seventh. He thus possessed the means of a rational harmonic accentuation and dramatic characterization.