TuneHow to tune a french horn
- Press Start Tuning and allow microphone access when your browser asks.
- Play one note. Play one long, steady note, close to the microphone, and let it ring.
- Read the display. The big letter is the nearest note. The bar shows how far off you are: left is flat (tune up), right is sharp (tune down).
- Turn until it goes green. Inside your tolerance (±3 cents by default) the display turns green and the string gets a check mark.
Tips
- Tune the F side with the main slide, then the B♭ side with its own slide.
- Your right hand in the bell changes pitch; tune with your normal playing hand position.
FAQ
Does this french horn tuner show written or concert pitch?
It shows the written note for a F french horn by default, so it matches the music you read. Choose “Concert pitch (C)” under Settings to see sounding pitch.
Why am I sharp at the start and flat later?
Instruments warm up as you play. Tune after a few minutes of playing, and check again during long rehearsals.
Can I tune to A = 442 Hz?
Yes. Open Settings and set Reference A4 to 442, or any value from 400 to 480 Hz.