Bass Vocals – Bernard Ladysz
Choir – The National Warsaw Philharmonic Orchestra Choir
Chorus Master – Jozef Bok
Composed By – Krzysztof Penderecki
Conductor – Andrzej Markowski
Design – Abby Helasdottir
Mastered By – Denis Blackham
Orchestra – The National Warsaw Philharmonic Orchestra
Soprano Vocals – Stefania Woytowicz
Technician [Final Mastering Prep] – Martin Bowes
Tenor Vocals – Kazimierz Pustelak