Human: What is the history of the symphony orchestra? Assistant: 
The symphony orchestra originated in the late 18th century as a group of musicians playing together. In the early 19th century, composers such as Mozart and Beethoven began to write for larger groups of instruments. This led to the formation of full orchestras with stringed instruments, woodwinds, brass, and percussion. By the mid-19th century, the symphony orchestra had become an established form of classical music performance. Today, it remains one of the most popular forms of classical music performance.