Beethoven's 'Missa Solemnis'

To set about composing his Missa Solemnis, Beethoven looked to the past. He obtained a copy of the score to J.S. Bach's B Minor Mass, at that time still unpublished, and also studied the sacred music of C.P.E. Bach. After countless sketches and spiritual preparation, Beethoven composed this work for large orchestra and chorus, dedicating more time to it than to any other work he composed. Written simultaneously with the Symphony No. 9, the Missa Solemnis is considered one of the most significant mass settings in classical music.