Casiio's 'Billet Doux' came out on September 12, 2019. With Billet Doux being less than two minutes long, at 1:49, we are fairly confident that this song is not explicit and is safe for all ages. Based on the duration of this song, this song duration is much smaller than the average song duration. Because this song is the only song in Billet Doux and no other songs are present in the album, we classify this track as a single. Billet Doux is below average in popularity right now. Although the overall vibe is very danceable, it does project more negative sounds.

Billet Doux テンポ

The tempo marking of Billet Doux by Casiio is Grave (very slow), since this song has a tempo of 39 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

Billet Doux キー

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.