Keil C51 开发的基于89C51的音乐程序，实际调试已通过-Keil C51 development of the 89C51-based music procedures, the actual testing has been adopted

keil and proteus联合演示显示效果，可实现音乐的播放，对初学者比较有用；很好的例子-United keil+ proteus demo show results, implementation of music playback, more useful for beginners good example

使单片机唱歌,在keil里编写汇编程序，用proteus仿真。-Make SCM singing, writing in the keil assembler, using proteus simulation.