Two superlative German ensembles assemble for an eminently creative summit meeting: the Calmus Ensemble and the musicians of Wolfgang Katschner’s Lautten Compagney meet one another under “Bach Arcades”: Johann Sebastian Bach’s chorales, so to speak, form the pillars on which the musicians, with curiosity and a willingness to experiment, erect a new and fascinating cupola of sound with works by Arvo Pärt, Guillaume Dufay, John Tavener and others. In addition, the timbres of the marimba and saxophone imbue the sound of the works recorded here with freshness and ease, time and again. With much humor and charm, unusual and surprising elements flow into many a familiar chorale, thus causing us to prick up our ears. Surprising arches of sound, supported by the foundation of Bach’s music, come into being and, with every Bach chorale, open up new musical spaces for the listener.