The invention provides a multi-tone multi-sound-effect dual-part single-string instrument with a music lamp. The single-string instrument is a novel electroacoustic
musical instrument which mainly comprises a body, two strings, two shafts, a triangular bridge, a rolling bridge, a string
pickup, a sound effect
pickup, a rocker, a string binding device, a tone adjusting device, a finger plate, a sound effect device, a hamlet, a music lamp
tower, a sound
photoelectric conversion device, a foot-controlled hitting device, a pedal keyboard and the like, wherein the two strings are adjusted to form an
octave relation, and are used for respectively playing a high part and a low part, or
octave harmony of the two parts by singly stirring the strings or string the strings simultaneously, the tone adjusting device and the finger plate are used for matching so as to play a plurality of
overtone tone and a plurality of flatness tone, the sound effect device and the sound effect
pickup are used for playing sound effects of a plurality of percussion music, hands and feet can be matched for playing, one person plays the instrument but can obtain a playing effect of a small band after the person is skillful in playing the instrument, the music lamp
tower flickers during playing, and colors of the lamp are changed along with the change of music tempo, and the instrument has a strong music expressive force and a good visual and audio artistic effect.