you can tune a piano, but you can't… oh, nevermind.quietpress listen and play a note.
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— cents— Hz— Hz target
Listen
first visit: hit listen and allow the microphone. after that TUNa is simply on when you open it — the button is your off switch. in a loud room, raise the noise gate so TUNa only hears you.
Display
four ways to watch the same pitch — the strobe is the calmest for long tones (when it stops moving, you're there).
In tune
how close counts as green. teachers: start relaxed, tighten later — the ear matters more than the needle.
Reference
what "A" means today. 440 for most things, 415 for baroque friends, 442 if the oboist insists.
Transpose
pick your instrument's key and the big note shows what you call it — concert pitch stays underneath so nobody gets lost.
Drone
a steady tone to tune against by ear — it follows your A4 setting, so a 415 drone really is baroque A.
Mini mode
pops a little tuner window that stays on top of everything — keep an eye on your pitch while you read a score. (chrome & edge on desktop; on ipad, use slide over — TUNa squeezes down to fit.)