Electronic percussion melody musical instrument

An electronic percussion melody musical instrument, comprising:

• a key module including a plurality of keys each arranged to receive a knock from the outside, and a plurality of energy conversion units each configured to sense mechanical energy generated by the knocking of the key and convert the mechanical energy into electrical energy in the form of an electrical signal, wherein the energy conversion unit comprises one or more of a piezoelectric ceramic sensor, a pressure sensitive sensor, a flexible bending sensor, and a vibration sensor;
• a storage unit configured to store sound source data associated with the plurality of keys, wherein the storage unit comprises an integrated chip (IC) audio source memory and a data memory;
• an output unit configured to output a sound signal corresponding to the sound source data, wherein the output unit comprises a speaker;
• and
• a control unit configured to:
• receive the electrical signal from the energy conversion unit;
• acquire the sound source data associated with the electrical signal from the storage unit according to the electrical signal;
• and
• control the output unit to output the sound signal corresponding to the sound source data, wherein the control unit comprises a digital signal processor,
• wherein the electronic percussion melody musical instrument further comprises a body configured to accommodate the control unit, the output unit, and the storage unit, the key module further includes a conductive structure, wherein the conductive structure includes a stress panel supporting the keys and a pressure-bearing bottom plate on one side of the body, the energy conversion unit is arranged between the stress panel and the pressure-bearing bottom plate;
• and
• the plurality of keys are arranged in at least two rows, wherein the first row is a semitone region and the second row is a whole tone region, and the keys are further arranged by one of:
• a support arranged on the stress panel and configured to support and fix the keys;
• or
• the key includes a bottom surface fitting the stress panel and two side parts, wherein inner surfaces of the two side parts are in surface contact with end surfaces of the stress panel and the pressure-bearing bottom plate and are partially inserted into the body to support and fix the keys.