After the Rain, Soraru, Mafumafu made "1・2・3" available on December 15, 2019. With this song being about 5 minutes long, at 4:59, "1・2・3" by After the Rain, Soraru, Mafumafu is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. There is only one song in 1・2・3, so we believe that this song is a single. The popularity of 1・2・3 is currently average in popularity right now. Since there is more of a neutral sound being played, this makes the track somewhat danceable.
The tempo marking of 1・2・3 by After the Rain, Soraru, Mafumafu is Presto (very, very fast), since this song has a tempo of 182 テンポ. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 4/4.
C Major is the music key of this track. This also means that this song has a camelot key of 8B. So, the perfect camelot match for 8B would be either 8B or 9A. While, 9B can give you a low energy boost. For moderate energy boost, you would use 5B and a high energy boost can either be 10B or 3B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 8A or 7B will give you a low energy drop, 11B would be a moderate one, and 6B or 1B would be a high energy drop. Lastly, 5A allows you to change the mood.