Chordophone with speaker function

A chordophone, which comprises a body configured to have a top plate, a bottom plate, and a side plate connected to the top plate and the bottom plate, the chordophone comprising:

• a cut-out plate formed by cutting the bottom plate, and configured to have a grille formed on a portion penetrated of the cut-out plate;
• a bracket formed in a shape corresponding to the cut-out plate and configured to have a base plate coupled to an inner side of the cut-out plate;
• and
• a speaker unit configured to have a speaker installed in the bracket, a control unit for controlling an output of the speaker, and a communication module for allowing a sound source output from the speaker to be received from an external user terminal,
• wherein the grille is formed in a size and shape corresponding to a diameter of a side on which a sound of the speaker is output, and a through-hole is formed penetrated on the base plate at a corresponding position to the grille and with a corresponding shape to a shape of the sound output side of the speaker, and
• wherein an application (app) for controlling the speaker is installed in the user terminal, the app is executed, a lesson mode is selected, the number of playing measures is selected, and then when a performance video is executed, the control unit plays the performance video for the number of the selected playing measures, then transmits a video pause selection signal to the user terminal after the selected playing measures time elapse.