Open Letter by Delayed Departure Song Details

Delayed Departure's ' "Open Letter" was released on its scheduled release date, October 9, 2025. With this song being around four minutes long, at 3:30, 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. The track order of this song in Delayed Departure's "Monochrome" album is number 6 out of 6. The popularity of Open Letter is currently not that popular right now. Based on the vibe, this track doesn't seem to be that danceable, however its valence properties can make this some somewhat danceable.

BPM and Tempo

We consider the tempo marking of Open Letter by Delayed Departure to be Vivace (lively and fast) because the track has a tempo of 165 BPM, a half-time of 82BPM, and a double-time of 330 BPM. Based on that, the speed of the song's tempo is fast. The time signature for this track is 4/4.

Music Key

D Minor is the music key of this track. Because this track belongs in the D Minor key, the camelot key is 7A. So, the perfect camelot match for 7A would be either 7A or 6B. While, a low energy boost can consist of either 7B or 8A. For moderate energy boost, you would use 4A and a high energy boost can either be 9A or 2A. However, if you are looking for a low energy drop, finding a song with a camelot key of 6A would be a great choice. Where 10A would give you a moderate drop, and 5A or 12A would be a high energy drop. Lastly, 10B allows you to change the mood.

Want to find the BPM and music key for other songs? Check out our BPM and Key Finder page!