Shigeaki Saegusa has been played on NTS in shows including Japan Blues, featured first on 19 January 2018. Songs played include Agnus Dei.

Saegusa Shigeaki (family name Saegusa) (born 1941) is a Japanese opera composer.

Saegusa is best known for his opera version Chushingura of the well-known kabuki epic of the Fort-seven Ronin with a libretto by the novelist Shimada Masahiko. Written over a period of 10 years, the opera was most recently performed at the New National Theatre, Tokyo in 2002.

He is also known for his Scores on Zeta Gundam, Char's Counterattack, and recently the New Zeta Gundam Movies.