Valves testing out a new jukebox for SteamOS that lets gamers play and manage their music on the fly. Beta users can link up whatever local folder they have music stored on, and those artists and albums will be displayed in both Big Picture mode and within SteamOS. And similar to Steams existing social features, Valves set it up so that users can jump into the player controls mid-game, with options to hop through playlists or individual tracks.