Considered by Beethoven himself to be his most beautiful and splendid composition. The great composer invested many years in the preparation of "Missa Solemnis in D," studying earlier a capella music, liturgical requirements and the precise significance of each part of the mass text. Beethoven's musical composition broke new ground in the ways it integrated the solo quartet, choral and orchestral passages. This concert was recorded in the majestic Saint Jean-Baptiste church in Montreal, Canada.