[2] In 1980, Ueno formed the musical group Guernica, noted for its unique form of avant garde music, along with vocalist Jun Togawa and lyricist Keichi Ohta.
[2] In the 1980s, Ueno worked with Akira Ifukube or Ryuichi Sakamoto on the soundtracks of the films Koneko Monogatari, Oritsu Uchūgun - Oneamisu no Tsubasa, and The Last Emperor.
[2] In 2004, he composed the music for the lauded Takashi Nakamura-directed anime television series, Fantastic Children.
Ueno has also lectured on film music at the Faculty of Art at Nihon University.
[2] He has won several awards, including the award for best musical composition at the 1989 Mainichi Film Festival for his composition of the musical score for the film Untama Giru, and has also won numerous international awards, including the best music at the Festival Des Trois Continents in Nantes in 1989, as well as the "Cristal tcheque pour la musique contemporaine" at the 32nd Golden Prague International Television Festival in 1995, held in Prague, for his score for the NHK television series, The Pale Cast of Thought.