Ueno Masaaki has a strong interest in the state of the world, natural phenomenons and laws of nature, including weather, biological and physical processes. 

He incorporates these spontaneous phenomenon into his work to recreate an "artificial/natural phenomenon with a new order". Ueno Masaaki studied composition, piano and conducting at the Toho-Gakuen school of music in Tokyo. One of his chamber works was selected for the 76th music competition of the Japan Awards. His other highly acclaimed accomplishments include conducting the soundtrack to NHK's TV drama "Kou-Myou Ga Tuji" and working as a sub-conductor for the musical "Take Flight” by Amon Miyamoto.

Since 2013, he has composed and published electronic music works under the name of Ueno Masaaki / Oprojekt. His first release Vortices was released on Raster-Noton.