利用伟福实验仪提供的键盘（4×6），使相应按键能够实现高、中、低相应的音调。（各音阶标对应的频率学生自己查找）

模拟弹钢琴程序 立体界面 支持不同音调 音域可扩展 按键有对应的立体效果-Play the piano three-dimensional simulation program interface supports different tonal range can be extended keys have the corresponding three-dimensional effect

汇编钢琴程序，本程序将键盘变成钢琴键盘，选择键盘上21个按键，作为低、中、高音21度音。通过此程序驱动PC机扬声器发出不同的音调。-Piano compilation process, the process will become a piano keyboard keyboard, choice of 21 keys on the keyboard, as low, middle and treble tone 21 degrees. Through this process-driven

按键电子琴，用8个按键，输出从中音1到高音1的8个音调。-Key keyboard with eight buttons, output from tone to treble tone 8.