In 1980 Kondo founded the Musica Practica Ensemble, a chamber orchestra devoted to contemporary music, and was artistic director of the group until its disbandment in 1991.
He has written more than eighty compositions, ranging from solo pieces to orchestral and electronic works, which have been widely performed in Japan, North America and Europe and recorded on Hat Art, ALM, Fontec Deutsche Grammophon and other labels. He has received commissions from numerous organisations, and his music has been featured at many international music festivals. Performers associated with his music include the conductor Tadaaki Otaka, the pianist Aki Takahashi, the Ives and Nieuw Ensembles in the Netherlands, the London Sinfonietta and many others.
Kondo has written extensively on musical matters, and since 1979 he has published four books spelling out in detail his own aesthetic and compositional ideas. He is also an associate editor of Contemporary Music Review. During 2000 he directed the composition classes at the Dartington International School of Music and was on the jury of the Gaudeamus International Composer’s competition, and was a featured composer at the 2005 Huddersfield Contemporary Music Festival.
“Each sound must have its own entity and life. What I am doing in my compositions is to create a web of intertonal relationships, while trying to safeguard the possibility of aurally perceiving the individual entity and life of every single tone in that relationship.” Jo Kondo