The tracker music is a genre of 1980's, known like postpunk, this music has a several sounds related about the clasic video games or gaming consoles like comodore 64, amiga, ZX Spectrum and others. I like this music so much a i want to every one knows it. the audio player for MS Windows is called XMPLAY and you can found it at here http://support.xmplay.com/ plus a several plugins, dsp, visuals.  the first web page that i recomend to visit and free download this music is ftp://ftp.modland.com/. have fun.