Shrimp Cake made "Open Letter" available on February 26, 2021. The duration of Open Letter is about two minutes long, specifically at 2:53. This song does not appear to have any foul language. Open Letter's duration is considered a little bit shorter than the average duration of a typical track. Since Open Letter only contains only one song in the album, we like to consider this song as a single. In terms of popularity, Open Letter is currently below average in popularity. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

Open Letter テンポ

With Open Letter by Shrimp Cake having a テンポ of 90 with a half-time of 45 テンポ and a double-time of 180 テンポ, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. Looking at the テンポ of this song, this song might go great with yoga or pilates. The time signature for this track is 4/4.

Open Letter キー

This song has a musical key of D♭ Major. Or for those who are familiar with the camelot wheel, 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.