164 made "残響" available on December 5, 2018. The duration of 残響 is about 3 minutes long, at 3:24. Based on our data, "残響" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. There is only one song in ⅠⅥⅣ, so we believe that "残響" is a single. Based on our statistics, 残響's popularity is below 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 残響 by 164 is Allegro (fast, quick, and bright), since this song has a tempo of 140 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with jogging or cycling. The time signature for this track is 4/4.
B Major is the music key of this track. This also means that this song has a camelot key of 1B. So, the perfect camelot match for 1B would be either 1B or 2A. While, 2B can give you a low energy boost. For moderate energy boost, you would use 10B and a high energy boost can either be 3B or 8B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 1A or 12B will give you a low energy drop, 4B would be a moderate one, and 11B or 6B would be a high energy drop. Lastly, 10A allows you to change the mood.