Only I didn't know - IU Information

"Only I didn't know" by IU was released on February 17, 2011. The duration of Only I didn't know is about 3 minutes long, at 3:22. Based on our data, "Only I didn't know" appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. There are a total of 3 in the song's album "REAL+". In this album, this song's track order is #1. Based on our statistics, Only I didn't know's popularity is 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.

Only I didn't know BPM

With Only I didn't know by IU having a BPM of 135 with a half-time of 68 BPM and a double-time of 270 BPM, we would consider this track to have a Allegro (fast, quick, and bright) tempo marking. Because of this, we believe that the song has an overall fast tempo. Looking at the BPM of this song, this song might go great with walking. The time signature for this track is 4/4.

Only I didn't know Key

This song is in the music key of F Minor. Which also means that the camelot key for this song is 4A. So, the perfect camelot match for 4A would be either 4A or 3B. While, a low energy boost can consist of either 4B or 5A. For moderate energy boost, you would use 1A and a high energy boost can either be 6A or 11A. However, if you are looking for a low energy drop, finding a song with a camelot key of 3A would be a great choice. Where 7A would give you a moderate drop, and 2A or 9A would be a high energy drop. Lastly, 7B allows you to change the mood.