Tetsu and Tomo's ' "なんでだろう20連発!!" was released on its scheduled release date, July 12, 2017. This song is about six minutes long, preciously at 6:18, making this song fairly long compared to other songs. There is only one song in 20周年記念アルバム「20周年で、なんでだろう」, so we believe that "なんでだろう20連発!!" is a single. なんでだろう20連発!! is not that popular right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

なんでだろう20連発!! テンポ

The tempo marking of なんでだろう20連発!! by Tetsu and Tomo is Andante (at a walking pace), since this song has a tempo of 78 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.

なんでだろう20連発!! キー

This song has a musical key of A Minor. Because this track belongs in the A Minor key, the camelot key is 8A. So, the perfect camelot match for 8A would be either 8A or 7B. While, a low energy boost can consist of either 8B or 9A. For moderate energy boost, you would use 5A and a high energy boost can either be 10A or 3A. However, if you are looking for a low energy drop, finding a song with a camelot key of 7A would be a great choice. Where 11A would give you a moderate drop, and 6A or 1A would be a high energy drop. Lastly, 11B allows you to change the mood.