Inspired by the idea of 'music of the spheres' and the interaction between space and men, the album reflects Sumino's multi-faceted artistry and melts old and new music into one unique listening experience. The album includes an intriguing variety of music recorded on concert grant and upright piano and ranges from Baroque to Romanticism (Bach, Purcell, Chopin, Ravel, Debussy); includes iconic film and contemporary composers such as Hans Zimmer and Ryuichi Sakamoto, plus Hayato's own arrangements of popular works such as Ravel's "Bolero" and Mozart's "Twinkle, Twinkle, Little Star. Five of Hayato's own unique compositions appear, including melodic and relaxing solo piano tracks, perfect for streaming and playlisting. "Human Universe" musically explores the idea of "Music of the Spheres", a concept that traces back to the ancient Greeks, who believed that celestial bodies in the universe emitted sound bringing music and harmony.