The music of Cornelius could be described as experimental and exploratory, and often incorporates dissonant elements alongside more familiar harmonically "pleasing" sounds. This tension, plus his practice of bringing in sounds and samples from mass culture, pure electronic tones, and sounds from nature (see his Point album) lead him to being sometimes categorized as an "acquired taste."
He chose his pseudonym in tribute to the character of the same name from the movie Planet of the Apes. He commissioned a song, about himself, on Momus's 1999 album Stars Forever.
Oyamada married fellow musician and collaborator Takako Minekawa in 2000.
From Wikipedia:Cornelius (born Keigo Oyamada (??? ??, Oyamada Keigo?) January 27, 1969 in Setagaya, Tokyo, Japan) is a Japanese recording artist and producer.
In 2003, he was ranked at number 43 in a list of Japan's top 100 musicians by HMV.