The electronic organ is a keyboard instrument, but it is actually an electronic synthesizer. It uses large-scale integrated circuits, and most of them are allocated with sound memory memory (wave table). It is used to store the real sound waveforms of various musical instruments and output them when playing. There are two kinds of electronic organ in common use: arranger keyboard (with automatic accompaniment) and synthesizer (without automatic accompaniment). Electronic pianos in a broad sense include electronic pianos (digital pianos, which are different from electro-acoustic pianos). Most of them use staff notation, and most of them are high and low double-line notation. Sometimes we also use alto spectrum, simple spectrum and guitar spectrum. Generally used in rock music.
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