Скачать или смотреть Isti Sunct Sancti My Manuscript page.

I bought a sheet of an old manuscript, it dates from around the 1500s, It is in the same order as "The Rauner Manuscript 003203" which is a sixteenth-century Latin antiphoner from Dartmouth College's Rauner Special Collections Library, containing a collection of noted chants for the Catholic mass, It is a liturgical book with plainsong notation and Latin text.

I am thrilled to find out what it sounds like after all these years. I just added the drone.
Credits to: Ensemble Elyma · Gabriel Garrido · Les Petits chanteurs de Saint-Marc. Monteverdi: Selva Morale e Spirituale

Isti sunt sancti qui pro testamento Dei
sua corpora tradiderunt.
Et in sanguine Agni laverunt stolas suas.

Sancti per fidem vicerunt
regna operati sunt justitiam
adepti sunt repromissiones

These are the saints who gave up their bodies for the covenant of God.
And they washed their robes in the blood of the Lamb.

The saints conquered by faith,
they wrought righteousness,
they obtained the promises.