Open string意思

"Open string" is a term used in music, particularly in the context of stringed instruments such as guitars, banjos, and violins. It refers to a string that is played without being fretted, meaning that the string is allowed to vibrate freely from the bridge to the nut (the piece at the end of the fretboard).

When an open string is played on a guitar, for example, the note produced is determined by the length of the vibrating portion of the string, which is set by the scale length of the instrument (the distance from the nut to the bridge). The open strings on a guitar are typically tuned to specific notes, such as E, A, D, G, B, and E from lowest to highest in standard tuning.

Playing open strings is a fundamental technique in stringed instrument playing and is often used to produce a bright, ringing sound or to establish the fundamental notes of a chord or musical key. Open strings can also be used in combination with fretted notes to create various chord shapes and melodies.