 His first was "Magic Knight Rayearth", which he considers to be a turning point in his career.In 2003 he composed the soundtrack for the live-action television show "Kamen Rider 555", and in the early 1990s he arranged pieces for orchestration for the "Orchestral Game Music Concerts".While his early work was done as an entirely freelance composer, in 1995 Matuso was recruited by Kohei Tanaka to join Imagine.