在线音乐吧，实现点歌，听歌，播放，暂停，找歌，下载，分类点歌，有前台和后台，管理员用后台实现管理。-Online music, song, listen to music, play, pause, find, download, song of classification, the onstage and the backstage administrator with the backstage to achieve management.

QT音乐播放, 实现本地音乐播放，在线音乐搜索、播放、下载等功能。-OT music player