钢琴一般设有三个踏板：右踏板、左踏板和中间踏板。右踏板又叫延音踏板或迟踏踏板；左踏板又叫断音踏板或短音踏板；中间踏板在右踏板与左踏板中间，此踏板是个弱音踏板，平常很少使用，它是为练琴者练习时准备的一种特殊装置。当练琴时，练习者怕影响他人，将此踏板踩下，或 The piano generally has three pedals: the right pedal, the left pedal and the middle pedal. The right pedal is also called the sustain pedal or the late pedal. The left pedal is also called the muted pedal or the short pedal. The middle pedal is between the right pedal and the left pedal. This pedal is a soft pedal and is rarely used. A special device to prepare for practice. When practicing the pianos, the practitioner is afraid of influencing others, depressing this pedal, or