The French horn is a brass instrument. The French type, though once leading in France and England, now is used occasionally. It has about 7 feet of tubing, which is added a separate crook inserted at the narrow end, lowering the horn’s primary pitch. The crook, by increasing the tubing and lowering the series of notes producible, puts the horn in the key of F, the basic tonality of the modern horn. The mouthpiece is slightly cup-shaped, the original straight cone shape now being outdated. The right hand of the player is placed inside the bell, and the left hand actuates the three valves; when depressed they repel air through further tubing and lower the pitch by certain intervals.