Missa Solemnis D-dur op. 123

Ludwig van Beethoven wrote his Missa solemnis between 1819 and 1822. The primary source for the present edition is the work copy of the score that Beethoven most likely commissioned immediately after completing the piece. It is the earliest copy of the work and the sole copy based on the now incomplete autograph. Since the work copy was repeatedly revised and corrected as further copies were made, it comes the closest today to a last authorized version .