利用实验数控分频器的设计硬件乐曲演奏电路,主系统由三个模块组成，顶层设计文件，其内部有三个功能模块，TONETABA.VHD,NOTETABS.VHD,和SPEAKERA.VHD, 在原设计的基础上，增加一个NOTETABS模块用于产生节拍控制（INDEX数据存留时间）和音阶选择信号，即在NOTETABS模块放置一个乐曲曲谱真值表，由一个计数器的计数值来控制此真值表的输出，而由此计数器的计数时钟信号作为乐曲节拍控制信号，从而可以设计出一个纯硬件的乐曲自动演奏电路。-Experimental NC divider hardware music played the circuit, the main system consists of three modules, top-level design file, within three functional modules, TONETABA.VHD NOTETABS.VHD, and SPEAKERA.VHD on the basis of the original designadd a NOTETABS module used to generate the beat control (the INDEX data retention time) and scale selection signal that a music scores truth table placed in the NOTETABS module by the count value of a counter to control the output of this truth table,this counter counts the clock signal as the music tempo control signal, which can design a pure hardware music automatically playing the circuit.