Symphony orchestras perform orchestral compositions traditionally such as symphony, concerto and suite that are composed of string instruments, woodwind and brass instruments. The size of a symphony orchestra differs from concert to concert, depending on the usage of the instruments. For instance, there are differences in the type and number of instruments used in the performance of a piece composed at the end of the 18th century and a piece composed at the beginning of the 20th century.
String Instruments: Violin, Viola, Cello, Contrabass
Woodwind Instruments: Flute, Oboe, Clarinet, English Horn, Bassoon
Brass Instruments: Horn, Trumpet, Trombone, Tuba
Percussion Instruments: Timpani, Xylophone, Tubular Bells