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Middle baroque music (1630–1700)

The rise of the centralized court is one of the economic and political features of what is often labelled the Age of Absolutism, personified by Louis XIV of France. The style of palace, and the court system of manners and arts he fostered became the model for the rest of Europe. The realities of rising church and state patronage created the demand for organized public music, as the increasing availability of instruments created the demand for chamber music, which is music for a small ensemble of instrumentalists.

One pre-eminent example of a court style composer is Jean-Baptiste Lully. He purchased patents from the monarchy to be the sole composer of operas for the French king and to prevent others from having operas staged. He completed 15 lyric tragedies and left unfinished Achille et Polyxène. Lully was an early example of a conductor; he would beat the time with a large staff to keep his ensembles together.

Musically, he did not establish the string-dominated norm for orchestras, which was inherited from the Italian opera, and the characteristically French five-part disposition (violins, violas—in hautes-contre, tailles and quintes sizes—and bass violins) had been used in the ballet from the time of Louis XIII. He did, however, introduce this ensemble to the lyric theatre, with the upper parts often doubled by recorders, flutes, and oboes, and the bass by bassoons. Trumpets and kettledrums were frequently added for heroic scenes.

The middle Baroque period in Italy is defined by the emergence of the vocal styles of cantata, oratorio, and opera during the 1630s, and a new concept of melody and harmony that elevated the status of the music to one of equality with the words, which formerly had been regarded as pre-eminent. The florid, coloratura monody of the early Baroque gave way to a simpler, more polished melodic style. These melodies were built from short, cadentially delimited ideas often based on stylized dance patterns drawn from the sarabande or the courante. The harmonies, too, might be simpler than in the early Baroque monody, to show expression in a lighter manner on the string and crescendos and diminuendos on longer notes. The accompanying bass lines were more integrated with the melody, producing a contrapuntal equivalence of the parts that later led to the device of an initial bass anticipation of the aria melody. This harmonic simplification also led to a new formal device of the differentiation of recitative (a more spoken part of opera) and aria (a part of opera that used sung melodies). The most important innovators of this style were the Romans Luigi Rossi and Giacomo Carissimi, who were primarily composers of cantatas and oratorios, respectively, and the Venetian Francesco Cavalli, who was principally an opera composer. Later important practitioners of this style include Antonio Cesti, Giovanni Legrenzi, and Alessandro Stradella, who additionally originated the concerto grosso style in his Sonate di viole.

Arcangelo Corelli is remembered as influential for his achievements on the other side of musical technique—as a violinist who organized violin technique and pedagogy—and in purely instrumental music, particularly his advocacy and development of the concerto grosso. Whereas Lully was ensconced at court, Corelli was one of the first composers to publish widely and have his music performed all over Europe. As with Lully's stylization and organization of the opera, the concerto grosso is built on strong contrasts—sections alternate between those played by the full orchestra, and those played by a smaller group. Fast sections and slow sections were juxtaposed against each other. Numbered among his students is Antonio Vivaldi, who later composed hundreds of works based on the principles in Corelli's trio sonatas and concerti.

In contrast to these composers, Dieterich Buxtehude was not a creature of court but instead was church musician, holding the posts of organist and Werkmeister at the Marienkirche at Lübeck. His duties as Werkmeister involved acting as the secretary, treasurer, and business manager of the church, while his position as organist included playing for all the main services, sometimes in collaboration with other instrumentalists or vocalists, who were also paid by the church. Entirely outside of his official church duties, he organised and directed a concert series known as the Abendmusiken, which included performances of sacred dramatic works regarded by his contemporaries as the equivalent of operas.

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