Q.E.D. by Sou Song Details

On January 8, 2026, the song "Q.E.D." was released by Sou. The duration of This song is about two minutes long, specifically at 2:45. This song does not appear to have any foul language. Q.E.D.'s duration is considered a little bit shorter than the average duration of a typical track. Since Q.E.D. only contains only one song in the album, we like to consider this song as a single. Furthermore, we believe that the track originated from Japan. Based on our statistics, Q.E.D.'s popularity is below average in popularity right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.

BPM and Tempo

With Q.E.D. by Sou 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 4/4.

Music Key

This song has a musical key of F♯ Minor. Or for those who are familiar with the camelot wheel, this song has a camelot key of 11A. So, the perfect camelot match for 11A would be either 11A or 10B. While, a low energy boost can consist of either 11B or 12A. For moderate energy boost, you would use 8A and a high energy boost can either be 1A or 6A. However, if you are looking for a low energy drop, finding a song with a camelot key of 10A would be a great choice. Where 2A would give you a moderate drop, and 9A or 4A would be a high energy drop. Lastly, 2B allows you to change the mood.

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