f(x) made "어렵고도 쉬운 f(Luna + Krystal)" available on November 16, 2009. With this song being around four minutes long, at 3:48, 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. There is only one song in 천하무적 이평강 (Original Television Soundtrack) Pt. 3, so we believe that "어렵고도 쉬운 f(Luna + Krystal)" is a single. Based on our statistics, 어렵고도 쉬운 f(Luna + Krystal)'s popularity is not that popular right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

어렵고도 쉬운 f(Luna + Krystal) テンポ

The tempo marking of 어렵고도 쉬운 f(Luna + Krystal) by f(x) is Allegro (fast, quick, and bright), since this song has a tempo of 146 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.

어렵고도 쉬운 f(Luna + Krystal) キー

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.