Harry Mack made "Day Zero" available on August 30, 2019. Day Zero is explicit and may not be suitable for children. With the duration being about 4:12, this song is close to the average duration of a typical track. Because this song is the only song in Day Zero and no other songs are present in the album, we classify this track as a single. Day Zero is below average in popularity right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

Day Zero テンポ

The tempo marking of Day Zero by Harry Mack is Andante (at a walking pace), since this song has a tempo of 82 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

Day Zero キー

This song is in the music key of D♭ Major. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.