自从17世纪的“精密节拍器”开始使用以来，这种能调整每分钟拍子数目、确定音乐作品速度的发声装置，在音乐创作、表演、教学方面起到不可低估的作用。从当时最为通用的梅尔策尔制作的机械。吐的节拍器，到二十世纪九十年代的电子、微电脑节拍器整整跨越了两个世纪。现代音乐 Since the introduction of the “metronome” in the 17th century, this audiotape, which can adjust the number of beats per minute and determine the speed of musical compositions, has played an important role in music creation, performance and teaching. Machinery from the most versatile Melzer made at the time. Spit metronome, to the nineties of the twentieth century electronics, micro-computer metronome completely spanned two centuries. Modern music