Naul made "언젠가는" available on January 8, 2005. With this song being around four minutes long, at 3:59, 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. The song is number 3 out of 17 in Back To The Soul Flight by Naul. 언젠가는 is below average in popularity right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.

언젠가는 テンポ

The tempo marking of 언젠가는 by Naul is Adagio (slowly with great expression), since this song has a tempo of 74 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.

언젠가는 キー

This song has a musical key of G Major. This also means that this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.