There are two different SMP's in the database (http://wiki.musicbrainz.org/wiki.pl?IdenticallyNamedArtists). Most of the releases are the Seattle industrial/rap/rock band (Jason Bazinet, and formerly Sean Ivy), famous for being on every industrial label in America. His SMP stands for "Sounds of Mass Production" (it used to stand for "Synaesthesia Murder Project" but he seems embarassed about that now). A few comp appearances are an unrelated Esslingen trance act, DJ Shah. His SMP stands for "Shah Music Productions" (T-Kay, at least while far from home and under the influence of something, says it stands for "Shah Meets Pussy").