Once Upon a December by Phantom Of The Synth Song Details

"Once Upon a December" by Phantom Of The Synth had its release date on January 29, 2026. The duration of This song is about two minutes long, specifically at 2:23. This song does not appear to have any foul language. Once Upon a December's duration is considered a little bit shorter than the average duration of a typical track. Since Once Upon a December only contains only one song in the album, we like to consider this song as a single. Based on our statistics, Once Upon a December's popularity is below average in popularity right now. Although the overall vibe is very danceable, it does project more negative sounds.

BPM and Tempo

With Once Upon a December by Phantom Of The Synth having a BPM of 126 with a half-time of 63 BPM and a double-time of 252 BPM, we would consider this track to have a Allegro (fast, quick, and bright) tempo marking. Because of this, we believe that the song has an overall fast tempo. Looking at the BPM of this song, this song might go great with walking. The time signature for this track is 3/4.

Music Key

This song has a musical key of B Minor. Or for those who are familiar with the camelot wheel, this song has a camelot key of 10A. So, the perfect camelot match for 10A would be either 10A or 9B. While, a low energy boost can consist of either 10B or 11A. For moderate energy boost, you would use 7A and a high energy boost can either be 12A or 5A. However, if you are looking for a low energy drop, finding a song with a camelot key of 9A would be a great choice. Where 1A would give you a moderate drop, and 8A or 3A would be a high energy drop. Lastly, 1B allows you to change the mood.

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