These were later expanded and a fourth part was added via the nin:access iPhone app and the "Listen" section of [[nin.com]]. They were again modified when they were posted on the [http://soundcloud.com/nineinchnails official NIN SoundCloud account] and [http://open.spotify.com/user/treznor Trent Reznor's official Spotify account].
The collection amasses over 100 NIN songs across its various iterations, and ''Quiet Tracks'' also contains two tracks from [[Trent Reznor]] and [[Atticus Ross]]' Oscar-winning score scores for ''[[The Social Network Soundtrack|The Social Network]]'' and ''[[The Girl With The Dragon Tattoo Soundtrack|The Girl With The Dragon Tattoo]]''.
==The Singles==