 "The Book of Soul" was of the last tracks that he recorded on the project, he touches on a couple topics throughout his life, with Alori Joh being the main subject over a jazzy instrumental produced by Tommy Black.Upon its release, "Control System" received universal acclaim from music critics.At Metacritic, which assigns a weighted mean rating out of 100 to reviews from mainstream critics, the album received an average score of 83, based on 10 reviews, which indicates "universal acclaim."