01 · The principle
Pitch error becomes motion.
Lumituner compares your note with its target. When their timing slips, the pattern rotates. As the pitches agree, that movement settles.
played pitch−target pitch=rotation
Lumituner is a strobe tuner: the rotating rings settle as your note reaches its target. Counterclockwise rotation means flat, so tune up; clockwise rotation means sharp, so tune down. Tiny outer-ring shimmer is normal — it shows pitch detail a typical tuner smooths away.
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Strobe guide
01 · The principle
Lumituner compares your note with its target. When their timing slips, the pattern rotates. As the pitches agree, that movement settles.
02 · Read the direction
Your note is below the target. Raise the pitch until the counterclockwise rotation slows away.
03 · Read the direction
Your note is above the target. Lower the pitch until the clockwise rotation slows away.
04 · Multiple resolutions
All the bands show the same pitch difference. Large inner blocks make direction easy to read; dense outer blocks reveal increasingly fine movement.
They are not separate tests you have to pass.
05 · Real strings breathe
A plucked string starts sharp, settles, and keeps moving microscopically as it decays. Finger pressure, string stiffness, harmonics, and room noise add tiny variations.
The outer bands reveal that movement because they are more sensitive—not because your tuning failed.
06 · Know when to stop
If the pattern has no steady direction and only the fine outer bands drift or tremble around center, the note is already exceptionally well tuned.
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