===[[Now I'm Nothing]]===
A track that was written for, and used as an introduction track to '''[[NIN|NIN's]]''' set during the '''[[Lollapalooza]]''' tour in 1991. It was usually followed by '''"[[Terrible Lie]],"''' and was never recorded in the studio nor officially released. However, a live video of it can be found on the DVD release of '''''[[Closure]]''''' and certain bootlegs.
===[[Halo_numbers#Null_numbers|Null]]===
This is the official numbering system of releases under '''[[The Null Corporation]]''' that are not by '''[[NIN]]'' or '''[[How To Destroy Angels]]''', such as '''''[[The Social Network Soundtrack]]''''' and '''''[[The Girl With The Dragon Tattoo Soundtrack]]'''''.
===[[The Null Corporation]]===