Seven O'Clock made "Halley" available on March 16, 2017. The duration of Halley is about 3 minutes long, at 3:09. Based on our data, "Halley" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. The song is number 3 out of 5 in Butterfly Effect by Seven O'Clock. Going off of the ISRC code of this track, we detected that the origin of this track is from South Korea. Based on our statistics, Halley's popularity is not that popular right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Halley テンポ

The tempo marking of Halley by Seven O'Clock 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.

Halley キー

This song has a musical key of D Major. 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.