Call US Forgotten's 'Heartless' came out on April 19, 2011. With this song being around four minutes long, at 4:00, 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 7 out of 7 in A Hope Remains by Call US Forgotten. The popularity of Heartless is currently below average in popularity right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

Heartless テンポ

The tempo marking of Heartless by Call US Forgotten is Vivace (lively and fast), since this song has a tempo of 176 テンポ. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 4/4.

Heartless キー

D♭ Major is the music key of this track. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.