The electric piano is an electroacoustic instrument. It is a kind of instrument used to replace the piano in some occasions, which rose in the 1960s and 1970s and was popular from the 1980s to the early 1990s.

The live performance effect of piano performance is mostly affected by the sound equipment. If the quality of the microphone responsible for collecting the piano volume is general or not professional enough, the piano timbre we hear on the scene is very difficult to be satisfactory, and the electric piano can be easily connected with the sound equipment such as the mixer at the performance site through an audio output line, and its original timbre is maintained as far as possible.