MCMXC a.D. is the first studio album by the German music project Enigma, headed by Romanian-German musician Michael Cretu. It was released on 10 December 1990 by Virgin Records in the United Kingdom, and on 28 January 1991 by Charisma Records in the United States. Before he founded Enigma, Cretu had released several solo records, collaborated with various artists, and produced albums for his then wife, German pop singer Sandra. Following their marriage in 1988, Cretu developed an idea for a New-age music project and recorded MCMXC a.D. in eight months at A.R.T. Studios, his home studio in Ibiza, Spain. It is one of the first albums recorded onto a hard disk. Cretu makes extensive use of Gregorian chants, dance beats, and flute sounds.

Michael Cretu is a Romanian-German musician, singer, songwriter, and producer. He gained worldwide fame as the founder and musician behind the German musical project Enigma, formed in 1990…

Michael Crétu's attempt at fusing everything from easy listening sex music and hip-hop rhythms to centuries-old Gregorian chants couldn't have been more designed to tweak the nose of high art, a joyously crass stab straight at a mainstream, do not pass go, do not collect 200 dollars. The result is something that shouldn't exist, but in its own way results in as much of a cultural scramble and explosion as anything Public Enemy were doing around the same time, crossing over the Euro-disco and new age spheres with style…

A Posteriori is a studio album by German musical project Enigma. It is Enigma's 6th album. In December 2006, the album was nominated in the Best New Age Album category in the 2007 Grammy Awards. While the previous album, Voyageur, contained minimal amounts of the project's signature sounds, A posteriori only contains the signature "Enigma horn" (a foghorn) during the opening minute of the album, and even then it is a fleeting glimpse. Coupled with the album's subject matter of the collision of the Milky Way and Andromeda galaxies, A posteriori is, compared to earlier releases, stark and foreboding.