"Hero" by xo sad, unheard was released on May 17, 2019. With this song being around four minutes long, at 3:53, 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. Because this song is the only song in Hero and no other songs are present in the album, we classify this track as a single. The popularity of Hero 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.

Hero テンポ

We consider the tempo marking of Hero by xo sad, unheard to be Vivace (lively and fast) because the track has a tempo of 172 テンポ, a half-time of 86テンポ, and a double-time of 344 テンポ. Based on that, the speed of the song's tempo is fast. The time signature for this track is 4/4.

Hero キー

The music key of this track is D Major. This also means that this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.