Jiuyue Miracle’s piano is a double-key electronic keyboard, and the price is more than 7,000. Controlling a double-key electronic keyboard requires the cooperation of multiple parts of the human body. Usually the right hand plays the main melody, the left hand plays the submelody or chords, and the right hand plays the submelody or chords. The foot controls the volume pedal or sustain pedal, the left foot controls the pedalboard to produce accompaniment bass, and the knees of both feet can also control switching of tone effects, etc. Playing a piece of music requires whole-body movement, which emphasizes the unified coordination of all parts of the body.

The double-key electronic keyboard has nearly a thousand timbres and the sound quality is close to that of a real musical instrument. And you can edit the timbre according to the needs of the music, such as the strength of the note head, the speed and amplitude of the string vibrato. Each row of keyboards can be stacked with several different tones. It can play the effect of a band, with great momentum.

Extended information:

In 1934, American Lawrence Hammond invented the double-row bond and applied for a patent. The first electronic keyboard, which was composed of electronic components, weighed about 10 tons and was as large as a room. Although clumsy, it finally entered the historical stage of musical instruments with a new look. The English name of the double-key electronic keyboard is Electronic organ, which is literally translated as electronic organ.

In 1959, Japan produced the world's first upright double-key electronic keyboard, named Electone, which had a three-layer keyboard.

Reference: Baidu Encyclopedia_Double-row Keyboard