The Bauhaus is usually associated with architecture and industrial design but it also had a musical side. The musical archive is mostly unexplored but there’s now a project to publish and record as much as possible. The first recording to be released is Marc Blitzstein’s 1929 opera Parabola and Circula to an English libretto by George Whitsett. What’s really unusual is that all the characters are geometric shapes (or maybe concepts, since a point and a line don’t have “shape). These characters interact on a series of planes. It makes me curious to know whether composer or librettist were familiar with Edin Abbott’s Flatland though the opera is about love and philosophy rather than geometry and class (*).