What is the 2nd string on a guitar?

The 2nd string on a guitar is called the B string. It is the second thinnest string and sits between the 1st string (high E) and the 3rd string (G). Guitar strings are numbered starting from the thinnest string, which makes the B string the 2nd string on the guitar.

Tuning of the 2nd string guitar

In standard tuning, the 2nd string guitar players use is tuned to B. The full standard tuning from lowest to highest string is E, A, D, G, B, E. This places the B string in a unique position on the instrument.

Why the 2nd string guitar is different

The 2nd string guitar is special because it breaks the regular tuning pattern of the guitar. Most adjacent strings are tuned a perfect fourth apart, but the interval between the 3rd string (G) and the 2nd string (B) is a major third.

This design makes chord shapes easier to play, but it also causes scale and pattern shapes to shift slightly when crossing the 2nd string.

Notes on the 2nd string guitar

The open 2nd string is B. As you move up the fretboard, the notes are C at the 1st fret, D at the 3rd fret, E at the 5th fret, F-sharp at the 7th fret, G at the 8th fret, A at the 10th fret, and B again at the 12th fret.

How the 2nd string is commonly used

The 2nd string guitar players rely on is heavily used in chord voicings, melodies, and lead playing. Because it is thinner than the lower strings, it is easier to bend and control for vibrato, making it popular for expressive playing.

Common issues with the 2nd string guitar

Many players notice that the 2nd string guitar can feel different from the others. It may go out of tune more easily, sound sharp if pressed too hard, or feel more sensitive under the fingers. These traits are normal and improve with proper technique and setup.

Summary

The 2nd string guitar refers to the B string. Understanding its tuning, notes, and unique role helps improve chord accuracy, scale navigation, and overall fretboard awareness.