The discovery in 2015 of a 15th-century parchment chansonnier still in its original binding was made still more startling because it contained twelve previously unknown, anonymous chansons. Most are rondeaus, and they range from the uncomplicated to the refined and elaborate; many bear musical indications that they are the work of the greatest composers of the period. In this recording they have been contextualised with other known songs but in the variant versions found in Leuven. As on their recording of the Chansonnier Cordiforme (on 8573325), Ensemble Leones employs a range of performance possibilities, from a cappella ensemble to a mixture of instruments and voices.

One of Ensemble Leones’s trademarks is the discovery of hitherto unknown works from the Middle Ages and Renaissance and the reintroduction of rarely heard instruments into the performance practice of Early Music. Through this pioneering work and reinterpretation of familiar works in concert and on record, Ensemble Leones has set a new aesthetic standard. The ensemble’s critically acclaimed discography includes Argentum et Aurum (8573346), which won the Early Music category of the 2016 International Classical Music Awards.