Why Your Ukulele Tuner Shows the Wrong Note
A tuner does not know which string you meant to play. It listens, measures the pitch and names the nearest note. That is why it can show a letter you did not expect: the string may be far from its target, or the tuner may be set for a different tuning.
Check the tuning it is set to
Most soprano, concert and tenor ukuleles use G–C–E–A, string 4 to string 1. Make sure the tuner is set to the same tuning as your strings.
- Standard high G: G4, C4, E4, A4.
- Low G changes only string 4, to G3. See high G and low G before changing a string.
- A baritone is tuned differently from a soprano, concert or tenor. If that is your instrument, choose its tuning.
If the setting does not match the strings, the letters can look wrong even when the strings are fine.
A string far from its target names a neighbour
Say the A string has dropped well below A. The tuner hears a pitch closer to G♯ than to A, so it shows G♯. It is not mistaken; it is naming the nearest note. Raise the pitch slowly and watch the letter change to A, then make the small final adjustments.
If the letter is far from the one you expect, stop before a large turn of the peg. Check the string you are plucking and the tuning you selected first.
Give the tuner one clean note
- Pluck one open string and let it ring. Rest your hand on the others so they stay quiet.
- Use a quiet room, and keep the phone close to the ukulele.
- Wait for the reading to settle. The first moment after a pluck is often the least steady.
- If the letter flickers between two notes, the string is probably between them. Tune slowly towards the one you want.
A one-minute check
Pluck G, C, E and A one at a time and say the letter you expect before you look. If three strings agree and one shows a neighbour, only that string is far off. Tune it, then check all four again. If the pitch keeps drifting afterwards, see why a ukulele will not stay in tune.
Want a guided check on your phone? Get Uku for iPhone and iPad. The tuner is free; advanced practice features have separate trial and unlock terms.
