__ (Underbar) made "*ハロー、プラネット" available on July 9, 2014. With this song being about 5 minutes long, at 5:00, "*ハロー、プラネット" by __ (Underbar) 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 くぁwせdrftgyふじこlp;@:「どうも、__(アンダーバー)です。」(仮), so we believe that "*ハロー、プラネット" is a single. Based on our statistics, *ハロー、プラネット's popularity is not that popular right now. Based on the vibe, this track doesn't seem to be that danceable, however its valence properties can make this some somewhat danceable.

*ハロー、プラネット テンポ

The tempo marking of *ハロー、プラネット by __ (Underbar) is Allegro (fast, quick, and bright), since this song has a tempo of 139 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with walking. The time signature for this track is 4/4.

*ハロー、プラネット キー

D Major is the music key of this track. This also means that this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.