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Plainchant or Gregorian chant
Puer natus est (2'00)
performed by Concentus
Interactive listening guide
| Puer natus est nobis | A boy is born to us | |
| et filius datus est nobis | and a son is given to us | |
| cuius imperium super humerum eius, | whose kingdom is upon his shoulder, | |
| et vocabitur nomen eius | and his name shall be called | |
| magni consilii angelus. | angel of great counsel. | |
| Isaiah 9:6 | ||
| Cantate domino canticum novum | Sing to the Lord a new song | |
| quia mirabilia fecit. | for he has done miracles. | |
| Psalm 98:1 | 
Kyrie (1'58)
performed by Concentus
Interactive listening guide
| Kyrie eleison. | Lord, have mercy. | |
| Christe eleison. | Christ, have mercy. | |
| Kyrie eleison. | Lord, have mercy. | 
Alleluia: dies sanctificatus (1'45)
performed by Concentus
Interactive listening guide
| Alleluia. | Alleluia. | |
| Dies sanctificatus illuxit nobis: | A day made holy dawns upon us: | |
| Venite gentes, et adorate Dominum; | Come, all nations, and adore the Lord; | |
| Quia hodie descendit lux magna super terram. | for today a great light has descended upon the earth. | |
| Alleluia. | Alleluia. | 
  
Breves dies hominis (2'46)
performed by Lionheart
| Breves dies hominis | Short the days of man, | |
| (mundi vita) | (worldly life) | |
| humane propaginis | of the human race, | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Nitimur in vetitum | We strive for the forbidden, | |
| (mundi vita) | (worldly life) | |
| caro contra spiritum. | Flesh against spirit. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Pelle moram propera | Hasten, rejecting delay; | |
| (mundi vita) | (worldly life) | |
| mora non est libera. | For delay is not free. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Mundo nil immundius; | Nothing worldly is pure; | |
| (mundi vita) | (worldly life) | |
| que facis, fac citius. | Do quickly what you must. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Corpus, quod corrumpitur, | The body, which decays, | |
| (mundi vita) | (worldly life) | |
| animam persequitur. | Must follow the spirit. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Et bonum propositum | And virtuous resolve | |
| (mundi vita) | (worldly life) | |
| revocat in irritum. | Recalls it from the void. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Alios quod doceo | What I teach others | |
| (mundi vita) | (worldly life) | |
| ipse docens impleo. | I also teach myself. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Christum ne exasperem | Lest I offend Christ, | |
| (mundi vita) | (worldly life) | |
| pauper sequor pauperem. | I follow the poor man's path. | |
| (que sit vita, cogita!) | (ponder what life means!) | |
| Corpus meum corrigo | I correct my body | |
| (mundi vita) | (worldly life) | |
| et in servum redigo. | And return it to servitude. | |
| (que sit vita, cogita!) | (ponder what life means!) | 
Léonin (fl. 1150)
  
Alleluia: Dies sanctificatus (6'41)
performed by Red Byrd/Cappella Amsterdam
Interactive listening guide
| Alleluia. | Alleluia. | |
| Dies sanctificatus illuxit nobis: | A day made holy dawns upon us: | |
| Venite gentes, et adorate Dominum; | Come, all nations, and adore the Lord; | |
| Quia hodie descendit lux magna super terram. | for today a great light has descended upon the earth. | |
| Alleluia. | Alleluia. | 
Pérotin (fl. 1200)
  
Viderunt omnes (11'39)
performed by the Hilliard Ensemble
Interactive listening guide
| (0'00) | Viderunt omnes (3'51) fines terrae | All the ends of the earth have seen | ||
| (4'00) | salutare Dei nostri. | the salvation of our God. | ||
| (4'18) | Jubilate Deo, omnis terra. | Rejoice in the Lord, all lands. | ||
| (4'49) | Notum fecit (7'44) Dominus salutare suum; | The Lord has made known his salvation; | ||
| (9'36) | ante conspectum gentium | in the sight of the heathen | ||
| (10'44) | revelavit (11'11) justitiam suam. | he has revealed his righteousness. |