The double-keyed electronic organ is a comprehensive musical instrument that combines keyboard performance, tone editing, music production and other functions. It has more than two layers of hand keyboards and one layer of foot keyboards, usually with the right hand to play the main melody, the left hand to play the backing voice and sub melody, the left foot to play the bass voice, the right foot to control the volume pedal or sustain pedal, the foot pedals on both sides of the switch and the knee can also be controlled to switch the timbre, open the tempo and control the sustain, the "two hands, two feet, hands and feet" performance form is very similar to the "two hands, two feet, hand dance This "hands and feet, hands and feet" playing form is very similar to the old "king of instruments" pipe organ. Double-row electronic piano music expression is very rich, can play a variety of styles of music, playing the unity and coordination of all parts of the body, so it is in the development of intelligence, to strengthen the coordination of the hands and brain is also a very good teaching tool. Representatives of the repertoire "5000 watts", "wind sailing", "Jupiter".