Seattle-based author Neal Stephenson, who wrote "Cryptonomicon" and has just published a new novel entitled "Anathem," loves the music of Byzantium. Consequently, one of his favorite ensembles is Cappella Romana. According to Mark Powell, executive director of Cappella Romana, several singers from CR are featured on the CD that comes with "Anathem."
Also, you can read about the music that Stephenson likes in this New York Times article. Another one of his favorite vocal ensembles is Seattle's The Tudor Choir. Also, the final paragraph points out that David Stutz, a member of Cappella Romana and The Tudor Choir wrote some music based on "Anathem."