Music from Ancient civilisations.

[iron_jones]

Missa Papae Marcelli, or Pope Marcellus Mass, is a mass by Giovanni Pierluigi da Palestrina. It is his most well-known and most often-performed mass.
The Missa Papae Marcelli consists, like most Renaissance masses, of a Kyrie, Gloria, Credo, Sanctus/Benedictus, and Agnus Dei, though the Agnus Dei is in two parts rather than the common three.
The mass was composed in honor of Pope Marcellus II, who reigned for three weeks in 1555.

Here is each part of Palestrina's Pope Marcellus Mass. I was able to find the recordings off of the same album except the Sanctus.

My personal favorite is the Agnus Dei (Lamb of God), the last one. It has a beautiful flow. It's time consuming but try listening to the entire mass in one sitting. Just lovely.