TUNa

you can tune a piano, but you can't… oh, nevermind. quiet press listen and play a note.
cents Hz Hz target
hit listen, allow the microphone, and play or sing a note. in a loud room, raise the noise gate so TUNa only hears you. hum from chargers and fluorescents is filtered out automatically.
four ways to watch the same pitch — the strobe is the calmest for long tones (when it stops moving, you're there).
how close counts as green. teachers: start relaxed, tighten later — the ear matters more than the needle.
what "A" means today. 440 for most things, 415 for baroque friends, 442 if the oboist insists.
pick your instrument's key and the big note shows what you call it — concert pitch stays underneath so nobody gets lost.
a steady tone to tune against by ear — it follows your A4 setting, so a 415 drone really is baroque A.
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.)
part of the redshift family — CENTient · DAWling · FAKEulous · PITCHure · SYNChronos · TEMPOrium · TUNa