Outerspace's 'Written in Blood' came out on March 3, 2015. Written in Blood is explicit and may not be suitable for children. With the duration being about 3:31, this song is close to the average duration of a typical track. The track order of this song in Outerspace's "My Brother's Keeper" album is number 8 out of 13. In terms of popularity, Written in Blood is currently below average in popularity. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Written in Blood テンポ

We consider the tempo marking of Written in Blood by Outerspace to be Andante (at a walking pace) because the track has a tempo of 92 テンポ, a half-time of 46テンポ, and a double-time of 184 テンポ. Based on that, the speed of the song's tempo is slow. Activities such as, yoga or pilates, can go well with this song. The time signature for this track is 4/4.

Written in Blood キー

This song has a musical key of A♭ Minor. Because this track belongs in the A♭ Minor key, the camelot key is 1A. So, the perfect camelot match for 1A would be either 1A or 12B. While, a low energy boost can consist of either 1B or 2A. For moderate energy boost, you would use 10A and a high energy boost can either be 3A or 8A. However, if you are looking for a low energy drop, finding a song with a camelot key of 12A would be a great choice. Where 4A would give you a moderate drop, and 11A or 6A would be a high energy drop. Lastly, 4B allows you to change the mood.