A stringed instrument is a musical instrument that has strings, such as a violin or a guitar. An instrument, such as a violin, viola, cello, or double bass, in which sound is produced by plucking, striking, or bowing taut strings. a musical instrument such as a violin, that produces sound from a set of strings brass, percussion percussion, the strings/the string section the strings/the string section, wind instrument wind instrument, woodwind woodwind. Any musical instrument that produces sound by the vibrations of strings. The strings may be of gut, metal, fibre, or plastic, and may be plucked, bowed, or struck. The orchestral stringed instruments include the violin, viola, cello, double bass, and harp. Keyboard stringed instruments include the clavichord, harpsichord, piano, and virginal. See also Aeolian harp; balalaika; dulcimer; guitar; kithara; koto; lute; lyre; mandolin; pipa; sitar; d; ukulele; viol; zither