Instrumentation
The symphony is scored for piccolo (fourth movement only), 2 flutes, 2 oboes, 2 clarinets in B flat, 2 bassoons, 2 horns in F and B flat, 2 trumpets in C and E flat (third, fourth, and fifth movements only), 2 trombones (alto and tenor, fourth and fifth movements only), timpani (fourth movement only), and strings.
Read more about this topic: Symphony No. 6 (Beethoven)