GuitarTuna: Tune a Guitar String by String

03Tune the low E without chasing the indicator

The thickest string is the low E. I pluck it by itself and watch GuitarTuna identify the pitch. If the display shows that the note is flat, I tighten its tuning peg a little; if it is sharp, I loosen the peg a little. I pluck again after each small adjustment. Small turns matter because the display responds to the string’s sound, not to how far my hand moved.

When I loosen a string, I prefer to go slightly below the target and then tighten gently up to it. That gives me a clearer final approach than stopping immediately after loosening. I keep my hand off the other strings and wait for household noise to settle before judging the reading. A smartwatch buzzing against the table is easy to move out of the way.

I stop when the tuner indicates the low E is in tune, then pluck it once more to confirm. I do not keep turning the peg to make a brief flicker look perfect. The note naturally fades, and a steadier reading near the start of a clean pluck is more useful. Now the other five strings have a simple order to follow.

04Work from A to high E, one string at a time

Moving from the thick strings toward the thin ones keeps me oriented: A, D, G, B, then high E. The two E strings are not interchangeable. Low E is the thick string I have just tuned; high E is the thinnest string on the other side of the fretboard. I check the string under my finger before adjusting its peg, especially when I have set the guitar down between notes.

For each remaining string, I repeat the same short sequence:

1. Pluck the A string alone and watch the tuner’s reading.
2. Turn only the A string’s peg in small amounts, then pluck again until it shows in tune.
3. Repeat for D, then G, then B.
4. Finish with the thin high E string.
5. Pluck each string once more, from low E through high E.

That last pass catches a string that has shifted while I worked on the others. I also listen as I go. If the display appears settled but the string sounds wildly different from what I expect, I pause and check the selected instrument, tuning and string before making another turn. It is much safer than trying to fix a puzzling reading with a large adjustment.

05If the note keeps jumping, change the sound around the phone

A jumping reading is not always a guitar problem. I first pluck more gently and give the string room to ring without brushing its neighbours. Then I move the phone closer and keep it still. If music is coming from another device, I pause it. The built-in microphone needs a clear note, and repeated hard plucks can make the first moment harder for me to judge.

I also check whether my finger is accidentally touching the string. A lightly touched string may produce an odd, thin sound; a fretted note is not the open-string note I am trying to tune. I release the string completely, pluck it open and look again. If the tuner identifies a different note, I check which string I actually plucked before turning a peg.

When the room is busy, I wait for a quieter moment rather than trying to outrun the noise with louder playing. Once the tuner responds consistently, I return to small peg turns and fresh plucks. The point is to make each reading understandable. With all six strings checked, there is one final test that matters more than staring at the screen.

06Play the chord that sent you here

I play the same chord that first sounded wrong. If it now sounds right, I put the phone down and play. If one note still stands out, I pick through the chord slowly to hear which string draws my attention, then check that open string again in Tuner. This is quicker for me than restarting the whole tuning sequence whenever a chord feels slightly off.

A guitar can drift after tuning, particularly if I have been making several peg adjustments. I make one final pass from low E to high E and stop when the open strings read in tune. Then I return to the chord, not to another round of tiny corrections. Tuning is preparation for playing; the app’s display is a guide, while the chord is the practical check.

If I am about to open GuitarTuna’s songs, chords or tabs, I do this check first. It keeps an out-of-tune string from making a familiar song feel harder than it is. My next move is simple: choose what to play while the guitar is ready, rather than leaving the tuner open and continuing to second-guess it.