"The Spectre" is a song by Norwegian record producer and DJ Alan Walker incorporating uncredited vocals provided by Norwegian songwriter and producer Jesper Borgen. It was composed by Jesper Borgen, Alan Walker, Marcus Arnbekk, Mood Melodies and Lars Kristian Rosness, with production handled by the latter four, and lyrics written by all composers as well as Tommy La Verdi and Gunnar Greve. "The Spectre" has a tempo of 128 BPM, is in the key of C♯ minor, and lasts for 3 minutes and 13 seconds. The song was released via Mer Musikk on 15 September 2017.

"All Falls Down" is a song by British-Norwegian record producer and DJ Alan Walker, featuring British DJ and producer Digital Farm Animals, American singer Noah Cyrus, and Swedish singer Juliander. It was composed by Digital Farm Animals, Pablo Bowman, Sarah Blanchard and its producers Walker, Mood Melodies, Digital Farm Animals and The Six, with lyrics written by The Six, Bowman, Blanchard and Daniel Boyle. The song was released on 27 October 2017 via Mer Musikk and Ultra Music to mixed reviews from critics, who praised Cyrus's vocals but deemed the song inferior to Walker's previous songs.