一组 MIDlet，实现单音调生成、使用各种源（如 JAR 文件和 HTTP）的音调排序以及一个应用程序中的混音、WAV 和音调排序变化。 需要：MIDP 2.0-A group MIDlet, to achieve single-tone generation, using a variety of sources (such as JAR files and HTTP) as well as a sort of tone application mix, WAV and tone order