Seiji Yokoyama has been played on NTS shows including Devotion w/ Lafawndah, with Le Sacrifice first played on 24 January 2018.

Seiji Yokoyama (横山 菁児, Yokoyama Seiji) (born March 17, 1935 - July 8, 2017) was a prolific Japanese incidental music composer from Hiroshima who is best known for his work on the Saint Seiya series. He was a graduate student of Kunitachi College of Music.

He made his debut as a composer for the ending theme of The Adventures of Hutch the Honeybee in 1974. He is known for his symphonic sound for many television programs. Notable works:

* Choujinki Metalder * Chouriki Sentai Ohranger * Kikou Kantai Dairugger XV * Magical Tarurūto-kun * Megaloman * Ikkiman * Saint Seiya * Space Pirate Captain Harlock * Tokkei Winspector