Poligena exanimes - Petrus Wilhelmi de Grudencz

‘Poligena exanimes’, a song by Petrus Wilhelmi de Grudencz, performed by Schola Gregoriana Pragensis (Tomáš Lajtkep and Ondřej Holub). The recording was made during a SoundMe concert in Warsaw (Evangelical-Reformed Church) on 15 May 2018.
The Easter song ‘Poligena exanimes’ was discovered in 2017 by members of the SoundMe project - Paweł Gancarczyk (Warsaw) and Jan Ciglbauer (Prague). It has been preserved in a manuscript from Opava (German Troppau) from the 1430s as well as in fragments from Silesia from around 1450. The text of this song contains the acrostic ‘Petrus’ which suggests that Petrus Wilhelmi was its author. The composition has typical features of a polyphonic ‘cantio’: it consists of two parts (‘versus’ [V.] and ‘repeticio’ [R.]). The first part opens with a melisma on the syllable ‘Po-‘, while in the second part we find a dialogue of voices on the word ‘Alleluia’. We find similar songs among the works of Petrus Wilhelmi and in the music of fifteenth-century Central Europe.
V. Many kin devoid of breath with one accord free the hideous thorns from Python’s maw
R. Alleluia, the Olympus plays symphonies and harmonies on a zither, alleluia
The earth, made joyful by the songs, will happily welcome the orphaned voices, alleluia.
V. Poligena exanimes / tedri ramni unanimes / solvit fauce Phitontis.
R. Alleluia, symphonie / cytharisat armonie / Olympus, alleluia /
Exhilarata lyricis / tellus plaudet orphanicis / vocibus, alleluia.

[@martinusloch9039]

Latinitas huius cantici mihi valde dubia videtur. Legerem potius ita (etiam absque manuscripto):
V. Polygena* exanimes taetris ramnis unanime solvit fauce Pythontis.
R. Alleluia, symphonias** cytharisat harmonie** Olympus, alleluia.
Exhilarata lyricis tellus plaudet Orpheicis vocibus, alleluia.
*polygena/polygenus - id est bis natus: imprimis de Deo Patre, deinde de Matre Virgine
**aut: symphonie ... harmonias