Open C Guitar Tuning
Open C sets the six strings from low to high to C G C G C E. Its wide, orchestral and deeply resonant voice works especially well for fingerstyle arrangements, drones and cinematic acoustic textures.
Do this first
No theory test. No perfect technique required. Follow these three steps and start making music.
Tap each string to hear it
What changes in Open C
The six strings form a broad C major chord with three roots, two fifths and one major third.
Make the tuning sound intentional
Create a thumb pattern on C and G while adding a melody to the top two strings.
Shape tip: Use simple one- and two-finger shapes while letting the repeated C and G strings sustain.
Retune to C G C G C E safely
Several strings move substantially; use appropriate gauges and retune in small steps.
Change one string at a time, approach the target pitch gradually and recheck every string after the neck settles. Stop if a string feels unusually tight, the bridge lifts or the instrument reacts unpredictably.
Turn the open strings into music
Quick answers before you play
What are the notes in Open C Guitar Tuning?
From the sixth string to the first string, tune to C G C G C E. Use the six playable reference notes above and recheck them after the neck settles.
Is Open C Guitar Tuning safe for my guitar?
Several strings move substantially; use appropriate gauges and retune in small steps. Stop if a string feels unusually tight, the bridge moves or the guitar becomes difficult to intonate.
Can I use normal chord shapes in Open C Guitar Tuning?
Some shapes may still work, but a open major tuning changes at least part of the fretboard. Start with the open strings, simple drones and the shape guidance on this page.
Why do the strings go out of tune again after retuning?
Changing one string changes the total tension on the neck. Tune all six strings, wait briefly and repeat the process until every reference pitch remains stable.