Find French horn lessons, classes, and instructors on HeyKiki and learn how to play the French Horn. The French horn is the closest descendant of the original natural horn that was used thousands of years ago. Historians believe it was given the "French" prefix as to distinguish between the English horn, which is a completely different instrument, because it's actually from Germany. Stretched out, the instrument has about 13 feet worth of metal tubing and a flared exit. It has a rotary valves that are used to change the amount of air moving through the tubing. It's also very large so be prepared to carry some weight if you're thinking of picking up the French horn anytime soon.