基于Midi技术的电脑钢琴软件，用户可以使用键盘或者鼠标弹屏幕上的钢琴，另可改变音色。可以作为电脑音乐软件的插件。-Midi technology based on computer piano software, users can use the keyboard or mouse on-screen piano shells, the other can change the tone. Can be used as comput