A Symphony Orchestra is defined as a large ensemble composed of wind, string, brass and percussion instruments and organized to perform classical music. Wind instruments include flute, oboe, clarinet and bassoons. String instruments include harp, violin, viola, cello, and double bass. Percussion instruments include timpani, snare drum, bass drum, cymbals, triangle, celesta and piano. Brass instruments are made up of French horn, trumpet, trombone and tuba. Orchestras which use fewer performers (forty players or less) are commonly known as chamber orchestras. A large orchestra (more than forty players), is referred to as a symphony orchestra. The term orchestra derives from the Greek name for the semi-circular area in front of the ancient Greek stage reserved for the chorus in theatrical presentations.
