The first whom I would mention are Don Carlo Gesualdo, Prince of Venosa, and Ludovico Viadana.
The former was a nephew of the Archbishop of Naples, was born in 1550, and died in 1613. His name is important from the fact that he went boldly beyond Monteverde, his contemporary, in the use of the new dissonant chords (sevenths and ninths) which were just beginning to be employed, and adopted a chromatic style of writing which strangely foreshadowed the chromatic polyphonic style of the present century. He wrote innumerable madrigals for a number of voices, but his innovations remained sterile so far as the development of music is concerned, for the reason that while his music often acquired a wonderful poignancy for his time by the use of chromatics, just as often it led him into the merest bramble bush of sound, real music being entirely absent.
Viadana (1566–1645) has been placed by many historians of music in the same category as Guido d'Arezzo (who is credited with having invented solmization, musical notation, etc.), Palestrina, Monteverde and Peri, who are famed, the one for having discovered the dominant ninth chord, and the other for the invention of opera. Viadana is said to have been the first to use what is called a basso continuo, and even the figured bass. The former was the uninterrupted repetition of a short melody or phrase in the bass through the entire course of a piece of music. This was done very often to give a sense of unity that nowadays would be obtained by a repetition of the first thought at certain intervals through the piece. The figured (or better, ciphered) bass was an entirely different thing. This device, which is still employed, consisted of the use of figures to indicate the different chords in music. These figures or ciphers were written over or under the bass note on which the chord represented by the figures was to be played or sung. A 5 over or under a bass note meant that with that note a perfect major triad was to be sounded, considering the note written as the root of the chord; a 3 was taken to stand for a perfect minor triad; a 6 for the chord of the sixth (first inversion of a triad), and 6⁄4 for the second inversion; a line through a 5 or 7 meant that the triad was a diminished fifth or a diminished seventh chord; a cross indicated a leading tone; a 4 stood for the third inversion of the dominant seventh chord. This system of shorthand, as it may be called, was and is still of tremendous value to composers. In the olden days, particularly, when many of the composers engraved their own music for publication, it saved a great deal of labour. It is probably not generally known that the engraving of music by the composer was so common; but such was the case with Bach, Rameau, and Couperin.
And this reminds me that the embellishments, as they were called, which are so common in all harpsichord and clavichord music, were also noted in a kind of shorthand, and for precisely the same reason. The embellishments themselves originated from the necessity for sustaining in some way the tone of the instrument, which gave out little, dry, clicklike sounds; if the melody were played in simple notes, these sounds would mingle with the accompaniment and be lost in it. Therefore, the embellishments served to sustain the tones of the melody, and thus cause them to stand out from the accompaniment. Their notation by means of symbols copied from the primitive neumes vastly facilitated the work of engraving. Much confusion arose in the notation of embellishments, owing to the fact that each composer had his own system of symbols.
Alessandro Scarlatti and his son Domenico, both celebrated in their day, are the next to demand attention. The former was born about 1650 and died about 1725. He wrote many operas of which we know practically nothing. His son was born about 1685 and died in 1757. He was the most celebrated harpsichord player of his time; and although his style, which was essentially one of virtuosity, was not productive of direct results, it did nevertheless foreshadow the wonderful technical achievements of Liszt in our own times. It is indeed a great pity that Domenico Scarlatti's work did not bear more direct fruit in his day, for it would have turned Mozart, as well as many others, from the loose, clumsy mannerisms of the later virtuoso style, which ran to the Alberti bass and other degrading platitudes, paralleled in our comparatively modern days by the Thalberg arpeggios, repeating notes, Döhler trill, etc.
Two masters in music, Händel and J.S. Bach, were born the same year, 1685; their great French contemporary, Rameau, was born two years earlier and died in 1764; while Händel died in 1759, and Bach in 1750. Bach was destined to give to the world its first glimpse of the tremendous power of music, while Rameau organized the elements of music into a scientific harmonic structure, laying the foundation for our modern harmony. Händel's great achievement (besides being a fine composer) was to crush all life out of the then promising school of English music, the foundation for which had been so well laid by Purcell, Byrd, Morley, etc.
Jean Philippe Rameau was born in Dijon, and after travels in Italy and a short period of service as organist at Clermont, in Auvergne, went to Paris. There he wrote a number of small vaudevilles or musical comedies, which were successful; and his music for the harpsichord, consisting almost exclusively of small pieces with descriptive titles, soon began to be widely played in France. Much later in life he succeeded in obtaining a hearing for his operas, the first of which, “Hippolyte et Aricie,” was given in 1732, when he was fifty years old. For thirty-two years his operas continued to hold the French stage against those of all foreigners.
His style marked a great advance over that of Lully, the Italian, of the century before. Rameau aimed at clearness of diction and was one of the first to attempt to give individuality to the different orchestral instruments. By some strange coincidence, his first opera had much the same dramatic situation that all the early operas seemed to have, namely, a scene in the infernal regions. Rameau's operas never became the foundation for a distinctly French opera, for at the time of his death (1764), Italian opera troupes had already introduced a kind of comedy with music, which rapidly developed into opéra comique; it was reserved for Gluck, the German, to revive grand opera in France.
As a theoretician, Rameau exerted tremendous influence upon music. He discovered that the chord which we call the perfect major triad was not merely the result of an artificial training of the ear to like certain combinations of sounds, but that this chord was inherent in every musical sound, constituting, as it does, the first four harmonics or overtones. All chords, therefore, that were not composed of thirds placed one above the other, were inversions of fundamental chords. This theory holds good in the general harmonic system of to-day. But although the major triad and even the dominant seventh chord could be traced back to the harmonics, the minor triad proved a different matter; after many experiments Rameau gave it up, leaving it unaccounted for.
Rameau was also largely instrumental in gaining recognition for the desirability of dividing the octave into twelve equal parts, making all the so-called half-tones recur at mathematically equal distances from each other in the chromatic scale. In 1737 his work on the generation of chords through overtones caused the equal temperament system of tuning to be generally accepted, and the old modes, with the exception of the Ionian and Æolian, to be dropped out of use. The former became known as major and the latter as minor, from the third, which was large in the Ionian and small in the Æolian.