An orchestra is a large group of musicians performing together, usually led by a conductor. In its strictest sense the term is used to identify a group having instruments from all four of the major families of musical instrument: strings, brass, woodwind and percussion.
The word orchestra ultimately derives from the ancient Greek word ορχήστρα referring to for the area at the front of the stage where the chorus would dance.[1]Over time, the word became associated with the musicians who now played there.