No idea what music is exactly on the site but I, for one, love 8bit music and would like to take this opportunity to spam some links to various related websites in case TFA is relevant to your interests.

  CDs:
  https://itunes.apple.com/us/album/absolute-amiga-compilation/id436035771
  http://dataairlines.bandcamp.com/
  Actual mod, it, s3m etc. files:
  http://modarchive.org/
  http://www.keygenmusic.net/
  Demos:
  http://www.pouet.net/
  Artists:
  http://www.8bitweapon.com/
  http://kubbi.bandcamp.com/
  https://soundcloud.com/goto80
  http://gwem.bandcamp.com/
  https://soundcloud.com/sabrepulse
  http://047.se/
  Commodore64 music:
  http://www.hvsc.c64.org/
  https://play.google.com/store/apps/details?id=net.bitheap.sidplayer

There's also plenty of material on Spotify and Grooveshark. If you need a player, Audacious / Banshee / Foobar2k / ModPlug Player / mpd / VLC / Winamp / XimpleMOD... Many players will work, try your existing player if you're not using one of the aforementioned players.