Nonsequitur is a co-ed a cappella group at Columbia University. Members and… Read Full Bio ↴Nonsequitur is a co-ed a cappella group at Columbia University. Members and alumni come from all four undergraduate schools at the University: Columbia College, the Fu Foundation School of Engineering and Applied Science, the School of General Studies, and Barnard College. Founded in 2000 and originally conceived as an all-male group specializing in alternative rock, Nonseq (as it’s popularly known) quickly grew to include all genders and genres. "Non sequitur" is Latin for "it does not follow"; living up to their name, Nonsequitur performs a wide repertoire of songs spanning many genres, including pop, rock, soul, jazz, and R&B.