The GCEA tuning on a ukulele is the standard tuning for most ukuleles. It means that the strings, from top to bottom (from the thickest to the thinnest string), are tuned to the following notes:
G (4th string, top)
C (3rd string)
E (2nd string)
A (1st string, bottom)
This tuning is designed for playing many songs and chords, making it easy to play and sing along. The GCEA tuning is common for soprano, concert, and tenor ukuleles.
When a ukulele has a low G string, it means that the 4th string (G) is tuned an octave lower than in the standard GCEA tuning. This tuning is often referred to as "Low G."
Effects of the Low G String:
Richer Sound: The low G string gives the ukulele a fuller and more resonant sound, especially for bass lines.
Expanded Playing Options: With a low G string, players can play more complex chords and melodies that might be difficult in the standard tuning.
Better Harmonization with Other Instruments: A low G string can help the ukulele blend better with other instruments, such as guitars, which often play lower notes.
Difference from Standard Tuning:
In standard GCEA tuning, the G string is tuned an octave higher (High G). Switching to a low G string changes the playing and tonal experience of the ukulele.