钢琴属键盘击弦乐器,系由弦槌击弦而发音。因此,弦槌的大小、重量和硬度与钢琴的声学品质关系很大。历史上最早的钢琴,弦槌是木制的,上包一层麋鹿皮。由于皮革经长久使用后有变硬的缺点;所以大约在1800年开始试验用羊毛毡呢代替麋鹿皮,以期获得一定的硬度和弹性。 The piano is a keyboard-stringed instrument, pronounced by a hammer-string. Therefore, the size, weight and hardness of the hammer have a great relationship with the acoustic quality of the piano. The earliest piano in history, the hammer is wooden, wrapped in a layer of elk skin. Due to the long-term use of leather after hardening has the disadvantage; so about 1800 began to test the use of wool felt instead of elk skin, in order to obtain a certain degree of hardness and flexibility.