A Sypmphony orchestra is an Orchestra consisting of multiple (often four) easily recognisible movements. Although in the past Symphony orchestra had many meanings it has, by the late 18th Century taken one meaning, as stated above.
Meaning[change | change source]
Symphony derives (comes from) the Greek word symphonis and means the agreement of the notes. The word referred (pointed to) to many different ideas before finally settling with it's current form.