Philippine Madrigal Singers (dir: Mark Anthony A. Carpio) y Coro de Voces Graves de Madrid (dir: Juan Pablo de Juan) II Ciclo de Conciertos "Voces Amigas". Gran Anfiteatro del Colegio de Médicos de Madrid. 17 de octubre de 2012.
Yes they went off key on this one...at 1:13 the girls went flat thus the basses and tenors were force to change key..hahaha neway this performance shows the flexibility of the performers to adapt quickly. hehehe