Halcyon Days by Cool Diffusion Song Details

Cool Diffusion's 'Halcyon Days' had a release date set for December 7, 2025. The duration of This song is about two minutes long, specifically at 2:43. This song does not appear to have any foul language. Halcyon Days's duration is considered a little bit shorter than the average duration of a typical track. The track order of this song in Cool Diffusion's "Iridescence" album is number 12 out of 15. In terms of popularity, Halcyon Days is currently not that popular. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

BPM and Tempo

We consider the tempo marking of Halcyon Days by Cool Diffusion to be Moderato (at a moderate speed) because the track has a tempo of 117 BPM, a half-time of 58BPM, and a double-time of 234 BPM. Based on that, the speed of the song's tempo is moderate. Activities such as, walking, can go well with this song. The time signature for this track is 3/4.

Music Key

E Minor is the music key of this track. Because this track belongs in the E Minor key, the camelot key is 9A. So, the perfect camelot match for 9A would be either 9A or 8B. While, a low energy boost can consist of either 9B or 10A. For moderate energy boost, you would use 6A and a high energy boost can either be 11A or 4A. However, if you are looking for a low energy drop, finding a song with a camelot key of 8A would be a great choice. Where 12A would give you a moderate drop, and 7A or 2A would be a high energy drop. Lastly, 12B allows you to change the mood.

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