human
What are some of the main differences between a symphony and an orchestra?
assistant
1.  A symphony is typically composed of four movements, while an orchestra can have many more than that.
2.  A symphony usually has a larger number of instruments in its score, including woodwinds, brass, strings, and percussion.
3.  A symphony often features complex counterpoint and harmony, whereas an orchestra will generally stick to simpler chords and melodies.
4.  The structure of a symphony is much more rigidly organized, with each movement following a similar pattern.