Conversation so far:
What instruments do they play in an orchestra?
An orchestra combines instruments such as violin, viola, cello, double bass, horn, trumpet, trombone, tuba, flute, oboe, clarinet, bassoon, timpani, bass drum, triangle, snare drum, cymbals, and mallet percussion instruments.
Are any other instruments played along with an orchestra besides the string, brass, and percussion instruments?
Other instruments such as the piano, harp and celesta may sometimes appear in an orchestra.

Question: Are there different types of orchestras?
Self-contained rewrite: Are there different types of orchestras?