Seiji Tanaka is a Japanese singer. His pen name as a composer is Ryuu Nakayama.
music performance
Music video / 1979
Music video / 1976
Music video / 1988
Music video / 1992
music composition
Music video / 1991
theme song performance
Music video / 1973
Music video / 1996
Music video / 1990
theme song composition
Music video / 1989