KIM JAE HWAN's 'Goodbye' had a release date set for February 2, 2020. With this song being around four minutes long, at 4:13, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. Because this song is the only song in Goodbye and no other songs are present in the album, we classify this track as a single. On top of that, South Korea appears to be the country where this track was created. Based on our statistics, Goodbye's popularity is below average in popularity right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Goodbye テンポ

We consider the tempo marking of Goodbye by KIM JAE HWAN to be Allegro (fast, quick, and bright) because the track has a tempo of 126 テンポ, a half-time of 63テンポ, and a double-time of 252 テンポ. Based on that, the speed of the song's tempo is fast. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.

Goodbye キー

This song is in the music key of E♭ Major. This also means that this song has a camelot key of 5B. So, the perfect camelot match for 5B would be either 5B or 6A. While, 6B can give you a low energy boost. For moderate energy boost, you would use 2B and a high energy boost can either be 7B or 12B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 5A or 4B will give you a low energy drop, 8B would be a moderate one, and 3B or 10B would be a high energy drop. Lastly, 2A allows you to change the mood.