1. The principles of sound production are different: the piano produces sound mechanically. Pressing the keys on the keyboard will move the felt-covered mallet inside the piano, and then strike the steel strings to produce sound; the electric piano It is an electronic sound that uses the keyboard as an on-off switch to form electrophoresis. Once the key is pressed, the internal crystal oscillator starts to work, forming a pulse to generate a waveform of a certain frequency, which is then amplified by the frequency divider and sent to the speaker to produce sound.

2. Different appearance and structure: Pianos are mainly divided into upright pianos and grand pianos in appearance, which occupy a wider area; electric pianos are similar to a rectangular shape and occupy less space.

3. Different weights and sizes: Pianos are mechanically sounding, and their structures are relatively complex and require more materials, while electric pianos use electronic sounding, which simplifies complexity and saves a lot of materials; therefore, pianos It is much larger and heavier than an electric piano. An ordinary piano generally weighs about 200 kilograms, while an electric piano only weighs a few dozen kilograms (usually only twenty or thirty kilograms). There is a big difference.

4. Different portability: Due to the difference in weight and size, the portability of electric pianos and pianos is also different, so electric pianos are easier to carry.

5. Different functions: Both piano and electric piano have 88 standard keys, but in addition to the 88 standard piano keys, the electric piano also has the functions of an electronic keyboard and even a synthesizer. There are many Tone and rhythm can be selected.