"For the viewpoint of content, Western music may be classified as sacred music, secular music, concert music. Concert music comprises the entire field of vocal and instrumental music. Its peaks are the symphony and the oratorio."
The orchestra and chorus performed an Easter oratorio.
Chorus: An ensemble performing the non-solo portion of a musical theatre production or opera or oratorio is generally called a chorus or chorale.
The oratorio is being prepared. At this juncture Bach appears, and creates cantatas that endure.
