Longer forms in instrumental music that convey direction and progression became possible due to which musical advancement by Arcangelo Corelli in the second half of the seventeenth century?

Orchestra music is the advanced instrument music in the second half of the 17th century.

Explanation:

The instrumental music are composed of Arcangello Corelli in 1653-1713. He is a model for the upcoming composers. In Bologna, he studied composition and violin. Across Europe he was the familiar person only in composing instrumental music. He increased the standards of performance. The schools playing violins in eighteenth century, he was the foundation teacher for this.

Reputation and influence

Corelli sonatas was the first model for the composers in the second half century. It became more classic in his compositions.  

Orchestra music

The musician began to difference between the chamber music, a part has 1 player and more than 1 player which is orchestral music.

Sorry i have to go ask somone else