2. Blow into the french horn until the pitch you are playing matches the pitch of the tuning fork or pitch pipe.
3. Adjust the tuning slide on the french horn until the pitch you are playing is exactly the same as the pitch of the tuning fork or pitch pipe. The tuning slide is located on the side of the french horn, near the mouthpiece.
4. Repeat steps 2 and 3 until all of the notes on the french horn are in tune.
Here are some additional tips for tuning the french horn:
* Make sure that the french horn is properly assembled.
* Check the tuning of the french horn regularly, especially before performances.
* If the french horn is not in tune, try to find a qualified楽器 repairman or tuner to adjust it for you.