Refalypse made "Letter To U" available on November 22, 2020. With this song being around four minutes long, at 4:26, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. Because this song is the only song in Letter To U and no other songs are present in the album, we classify this track as a single. On top of that, South Africa appears to be the country where this track was created. Based on our statistics, Letter To U's popularity is unknown right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Letter To U テンポ

We consider the tempo marking of Letter To U by Refalypse to be Vivace (lively and fast) because the track has a tempo of 159 テンポ, a half-time of 80テンポ, and a double-time of 318 テンポ. Based on that, the speed of the song's tempo is fast. Activities such as, running, can go well with this song. The time signature for this track is 4/4.

Letter To U 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.