简易的电子琴，实现小字组、小字一组以及小字二组的乐音，可读取txt文档乐谱以及其他读写功能。-Simple keyboard, to achieve small print group, and a group of small print small print tone two groups can be read txt documents to read and write music, and other functions.

midi键盘 读取midi数据，就行播放，转换为五线谱，分析midi很不错的源码-MIDI keyboard to read MIDI data, it is converted to a player, a very good source, analysis of MIDI