A sacrilege or a stroke of genius? The composer and music director Gottlob Benedict Bierey (1772–1840) orchestrated the first movement of the famous "Moonlight Sonata" by Beethoven (transposed to C minor) and added a four-part choral movement to it, which he underlaid with the text of the Kyrie from the Latin mass. The result is as astounding as it is harmonious!
The Bierey arrangement has been arranged by Andreas Gräsle for choir and organ, and is in C sharp minor, like the original piano part. A separate chorus score corresponding with the organ arrangement is available.