The lyrics of John Maus's song "That Night" express themes of atonal dissonance, betrayal, and heartbreak. The narrator addresses Jennifer, questioning why she sang to him on the night they were together. The lyrics mention lying together and the narrator feeling deceived. This suggests that Jennifer may have been dishonest or unfaithful, resulting in the narrator's heart being broken. The repetition of the line "atonal dissonance is what she likes" hints at a peculiar interest in disharmony or chaos, possibly reflecting Jennifer's true nature. The overall meaning of the song revolves around a failed relationship and the pain caused by deception and heartbreak.