Heres somthing simple and The reason its in the hack section is because it needs in-game overlay and hotkey function.
~Ingame music player~
1.Load your mp3 file
(So its your music)
(Play, pause, stop, shuffle, loop, Load file)
4.Customizable skin color
5.Mpgh.net Logo that takes you straight to Combat arms hack section on click.
6.Disable/enable all ingame music function (including lobby and load screens).