One of the oldest available Requiem compositions, world premiere recording of di Lasso´s Requiem, unique sound experience due to the low male voices and low instruments as trombones and organ. In the manuscript Tonk. Schl. 23, a large choir book from the former Benedictine Abbey St. Ulrich und Afra in Augsburg which is currently housed at the Augsburger Staats- und Stadt-bibliothek, musicologist Dr. Tobias Rimek discovered a previously unknown copy of Orlando di Lasso‘s Requiem for four voices. The version found in the Augsburg choir book is not only the oldest, but most certainly the original version of the Requiem, including a setting of the sequence „Dies irae“, which is missing in all of the later transmissions. The original version from Augsburg is a perfect fifth lower than later printed editions of the composition, which puts all four voices of the ensemble into an extremely low register, requiring the following vocal ranges: tenor, baritone, bass und basso profondo. In our rendition (edition: Tobias Rimek) the voices are reinforced with instruments playing colla parte, consistent with performance practice of the period: three sackbuts, bass dulcian and organ magnify the solemn gravity of the composition. Ensemble Capella Foccara, made up of internationally renowned musicians devoted to historically informed performance practice, focusses on lesser-known music from the 16th to the 18th century, performing primarily works from the regions of Bavaria and Swabia, and from the imperial center Augsburg. The point of departure for this CD was a convention of the Association for Augsburger Diocesan History, the occasion being the five-hundredth anniversary of the birth of Prince-Bishop Cardinal Otto Truchseß von Waldburg in the preceding year. In order to add an appropriate air of splendour to this commemoration of such an illustrious personality, we reinforced Orlando di Lasso‘s Requiem, originally for four voices, with three sackbuts, bass dulcian and organ. In this magnificent constellation the Augsburg version of the Requiem was recreated on November 21, 2014 in the choir of the Basilica St. Ulrich & Afra, at the site where it is believed to have been written, for the first time after nearly 450 years