标准 GCEA（高音四弦）调弦

What GCEA actually means

Reading from the string nearest your chin to the string nearest the floor: G, C, E, A. The pitches are G4, C4, E4 and A4 — and that is the whole trick of a ukulele. The G string is higher than the C string, not lower. This is called re-entrant tuning, and it is why a four-string instrument sounds bigger than its size suggests.

The interval pattern is a fourth (G to C), a major third (C to E) and a fourth (E to A). Two wide intervals with a narrow one in the middle: the narrow one is where all the close harmony lives.

Tuning it without a tuner

If you have no tuner, tune the C string first using any reference — a piano, a phone tone, another instrument. Then:

• E string, 4th fret should match the open A string.
• G string, 5th fret should match the open C string.
• C string, 4th fret should match the open E string.
• E string, 3rd fret should match the open G string.

Work in that order and you will arrive at GCEA every time, because each step checks against a string you have already tuned.

Reading the note strip

The tuning card on every song page prints the four open notes in the same order you see the strings: G, C, E, A. It is deliberately just note names — no fret grid, no dots — because the point of a tuning card is to be glanceable while your hands are busy, not to teach you a chord.

• Open string notes: G4 C4 E4 A4
• String order, left to right as printed: G C E A
• Capo placement changes nothing about these names; it just moves them all up together.

When to leave GCEA

Stay in GCEA unless you have a specific reason. Low G gives you a lower bass line for fingerpicking; D6 (A D F sharp B) gives a brighter, tighter sound and shorter stretches; DGBE baritone is a different instrument in all but name. For singing with other people, GCEA is the tuning that matches the widest catalogue of printed sheets.