W. A. Mozart - KV 220 (196b) - Missa brevis in C major "Spatzenmesse" 

Ik Im just 15 but I wanna play this on my wedding soooo bad

The Harnoncourt phrasing became legendary, though triggered a lot of flak from expressionless HIPsters too. I personally prefer the Philips recordings by Kegel of the masses, sound engineering is better and modern instruments give the edge in orchestral brilliance. Leipzig Radio Chorus pretty impressive too, as soloists - sad to hear in Harnoncourt's versions how Uwe Heilmann's voice deteriorated over the years. At his prime in the 1980s and better recording outfit, different story. The Concentus Musicus Wien under Harnoncourt's 'phrasing' delicacy and energy has been one of the few Baroque ensembles I paid attention to, and collected discs from, over the years. Mozart's masses were recorded in a parish church in the Austrian countryside with wonderful acoustics over the summer in the 1990s. These are some of Harnoncourt/CMV/ASC best recordings.

Austrian, to be precise

Luca Garzolini germans cant sing

DankMemes Gerharher, Damrau, Kaufmann, Fischer-Dieskau, Regensburger Domspatzen, Wunderlich

Unlucky for you if all the Germans you've heard of can't sing.

Le monde serài sans soucis avec des pareils oeuvres de l'esprit de Mozart. C'est tres riche en couleur en son et en amotion ce Mozart me berce comme une maman berce son fils quand je suis devant l'adversite... Seigneur tu as pris une figure amblematique.... Ya plein de gens valeureux au ciel... MERCI toujours pour Benedictus Lui Venis sa me console et me revigore plus que jamais....

It is, it's just a different tuning (~430 Hz rather than the traditional 440 today). It's more realistic to how it would have been in Mozart's time.

It is not in the regular C major, i think it is slightly lower as it is would be performed in Mozart's time :)