Transformers: History of Music 1984-1990 is a soundtrack collection released in Japan by Columbia Music Entertainment in March 2004. It contains virtually every piece of original music composed for the Japanese Transformers series between the 1984 and 1990, spanning the entirely of the Generation One animated series: theme songs, background music, karaoke, image music and more. Although the producers wanted to include the background music composed for the American series by Johnny Douglas and Robert J. Walsh (which was retained in the Japanese dubs of those episodes), as well as the soundtrack from The Transformers: The Movie, they were not able to clear the rights.