Despite all of its folk-line simplicity of melody, Haydn's first mass contains a pious note that, just like its youthful verve, still was to hold fascination for him in his late years when, in 1805, he re-orchestrated his first work. The first version of the mass is considered to have been composed in 1749 or 1750. It was around the same time that Pope Benedict XIV treated questions concerning church music in his encyclical "Annus qui" in which he condemned the frequently operatic style of churc...