Hello Darling's 'American Heart' came out on October 1, 2021. With this song being about 5 minutes long, at 4:38, "American Heart" by Hello Darling is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. The track order of this song in Hello Darling's "Hello Darling" album is number 2 out of 3. American Heart is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

American Heart テンポ

We consider the tempo marking of American Heart by Hello Darling to be Adagio (slowly with great expression) because the track has a tempo of 72 テンポ, a half-time of 36テンポ, and a double-time of 144 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

American Heart キー

This song is in the music key of B Major. 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.