On July 22, 2021, the song "Hot16" was released by SMART. For a fairly short song, this song is "Hot16" is considered an explicit song with a duration of 1:02. Because this song is the only song in Hot16 and no other songs are present in the album, we classify this track as a single. Hot16 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.

Hot16 テンポ

We consider the tempo marking of Hot16 by SMART to be Andante (at a walking pace) because the track has a tempo of 89 テンポ, a half-time of 44テンポ, and a double-time of 178 テンポ. Based on that, the speed of the song's tempo is slow. Activities such as, yoga or pilates, can go well with this song. The time signature for this track is 4/4.

Hot16 キー

This song has a musical 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.