From the Constellation web-site:

re: is the sound project of Aden Evens and Ian Ilavsky, who first met at McGill University in 1990 and began working on music together in 1996.

Aden graduated Harvard with a degree in Philosophy and Math, spent a few years programming computers in Boston, then moved to Montreal in 1990 and wrote his PhD on Deleuze, ethics, and asethetics at McGill. He taught various courses in Philosophy, Literature and Sound Theory at SUNY Albany, the New School, McGill and Harvard around the cusp of the millennium before recently landing a professorship at MIT. His first book, Sound Ideas, is forthcoming in the 'Theory Out of Bounds' series from Minnesota Press (Spring 2005). His academic and published work focuses on questions of digital and analog sound, the ontology of noise, ethics and the cultural implications of digital media.

Ian abandoned school in 1992 to bake bagels and play in post-punk band Sofa, joined folk-punk group Sackville in 1996 and co-founded Constellation in 1997. He has contributed to various recordings by other Montreal bands, both as engineer (Fly Pan Am) and musician (Hangedup, Frankie Sparo). He joined Silver Mt. Zion in 2001 and co-founded the very loud drum and bass duo Diebold in 2003. He has written various polemical tracts about independent artistic production, the music industry, and the media.