standard tuning E·A·D·G·B·e — A440 — mic + synth reference — all local, no tracking
●audio: idle
◉ SIGNAL — live wavelength
DEMO WAVE — HIT START
-50¢ FLAT-120+12+50¢ SHARP
E2
82.41 Hz
press START, allow mic, hit a string
STANDBY
◉ STRINGS — pick target · hear it · tune to it
mic stays in your browser. nothing is recorded or sent.
◉ HOW — get close
① hit one string, let it ring ② watch the wavelength + needle
③ amber = getting warm (±30¢) · green LOCK = in tune (±5¢)
◀ FLAT = tune UP · SHARP = tune DOWN ▶
keys 1–6 target · space plays reference