- This album is the first volume of an ambitious project: the recording of the complete codex of Las Huelgas, one of the most important sources of music of the High Middle Ages, an anthology of songs from the 13th century representative of the Ars Antiqua. The manuscript was written in the Cistercian monastery of Santa María la Real de Las Huelgas in Burgos, with the authorisation of Alfonso VIII King of Castile. The manuscript contains 45 monophonic pieces (20 sequences, 5 conductus, 10 Benedicamus tropes) and 141 polyphonic compositions. Most of the music dates from the late 13th century, with some music from the first half of the 13th century (Notre Dame repertory), and a few later additions from the first quarter of the 14th century. Many of the pieces are not found in any other manuscripts.

- This first volume contains two CDs with performances by the Gruppo Vocale Armoniosoincanto and the Gruppo Vocale Garda Trentino. We find two tonally different types of performance: the young voices of Garda Trentino offer a luminosity and rhythmic precision, always expressive and communicative. Armoniosoincanto presents a more reflective and controlled interpretation, strongly linked to the texts.