由于电子工业的迅猛发展，许多电子乐器也相继问世，而且在实际应用中起到了主要作用。电钢琴已不仅仅是在电声乐队的狭窄范围内使用，它已拓宽其应用范围，越来越多地应用到键盘教学当中。电钢琴集体课一般分为20人为一组进行授课，这种授课方式基本能够缓解目前键盘专业教师 Due to the rapid development of the electronics industry, many electronic musical instruments have come out one after another, and play a major role in practical applications. Electric piano has not only been used in the narrow range of electro-acoustic band, it has broadened its range of applications, more and more applied to the keyboard teaching. Electric piano collective class is generally divided into 20 for a group of lectures, the basic teaching methods to ease the current keyboard professional teachers