Seiji Yokoyama was born in Hiroshima and graduated in 1957 from Kunitachi University. He immediately began his career with radio soap operas for ABC and NHK. His compositions were highly used in television for TV movies and live series as well as animated series. In 1978, his first great success came with Captain Harlock and the award of a gold record for the album Symphonic Suite. Another great masterpiece was the famous series and films of Saint Seiya (Knights of the Zodiac) from 1986 to 1989. The series was followed by the composer receiving two awards from the Jasrac in 1992 including the international award for granting copyright. He continued his career with TV movies, series, and animated films including the Sangokushi trilogy (The Romance of the Three Kingdoms). He recorded in 1995, the Symphonic Suite of Choriki Sentai OhRagner in Paris at the Guillaume Tell's studios.
In 2008, a new work for France with the drama album Ragen Blue, an original creation for which he signed the symphonic composition. He continued to work on original soundtracks and participated in the musical selection of the official concerts of Saint Seiya: Pegasus Symphony from 2014 to 2016 in Paris. To date, these concerts have been the last to faithfully reproduce the composer's scores. He continued his activity with the writing of several suites for a series of recitals in Hiroshima: The Flow (2014), The Scramble (2015), and Soshite Inori (2015). Photos and Text (c) Inory Music