Mike Castro de Maria is an electronic music composer from Cannes, France. He was born in Geneva in 1972 to a Galician father who had fled from Francoist Spain and a Franco-Italian mother. His street name is a combination of his origins and he decided to use it as his stage name. At fifteen, he started on the bass, which led him to appear with different bands on the Côte d'Azur. In 1991 he formed the band "Loi 91-32", a venture that was to last more than a year. In February 2011, he released "Tempus fugit" the first opus of the Ultrasonique series.