The lyrics were composed by the group and reviewed by
Valve, the company who made the game, to ensure they fit with the tone of one of the Rattmann's dens, where it appears in-game. The National had expressed to
Bug Music, their publishing label, an interest in doing music for Valve which the label forwarded on to Valve in discussing other music opportunities for the game. Valve and Bug Music identified that the National would fit well into
Portal 2, as their "raw and emotive music evokes the same visceral reactions from its listeners that Portal does from its players" according to Bug Music's spokesperson Julia Betley. ==Critical reception==