Answer:
Symphony No. 5 in C minor.
Step-by-step explanation:
The Symphony No.5 in C minor is one of the most known classical music composition. It was written by Ludwig van Beethoven between 1804 and 1808.
The key used by Beethoven is called C minor. He wrote many pieces of work in C minor: the key expresses his artistic character and it is said that shows how extrovert he was.