Mozart's Mass in C minor, K427, first performed in 1783. Ferenc Fricsay conducting the Berlin Radio Symphony Orchestra [click here to download]. Here is the text and translation.
Although I agree with the assessment of Ernest Boehm of Des Plaines, Illinois, I take issue with some of his spelling and grammar. Please enjoy his review of Fricsay's recording courtesy of amazon.com:
I am a fan of Mozart Masses, even though I am an athiest they are so beautiful in sound and construction. Mozart's use of soloist and choir are stunning. My favorite piece of music ever, the one which still send shivers down my spine every time I hear it, is the Kyrie. It starts with the choir singing kyrie elleison and then is followed by mezzo-saprano then the tenor then the base resounds Christi followed by this high pitched saprano answering Christi Elleison. I have yet hear one phrase in music that shares this purity of genius. The whole mass is beatiful.