音乐发生器及同步显歌词本试验从硬件电路原理图，PCB图，元器件布线图的设计，元器件的安装与硬件调试，到软件控制程序设计，再到系统软件硬件联调，进行全过程分析和实验-Music generator and synchronized lyrics of the test significantly from the hardware circuit schematics, PCB diagram, wiring diagram component design, component installa