The Northern German Chamber Choir performs chorale melodies which are hidden in the Ciaconna of Bach's Partita BWV 1004, as discovered by Gertrud Schilde. Title from cover of program notes. Program notes and biographical notes in English with French translations inserted in container. Recorded November 02-05, 2016, Konzerthaus de Abtei Manenmünster. Gertrud Schilde, violin; Jan Philip Schulze, piano; Norddeutscher Kammerchor; Maria Jürgensen, conductor.