OPE SAINT JOHN PAUL II wrote famously on 22 November 2003: “Regarding liturgical music, I make my own the rule of Saint Pius X: The more closely a composition for church approaches in its movement, inspiration, and savor the Gregorian melodic form, the more sacred and liturgical it becomes; and the more out of harmony it is with that supreme model, the less worthy it is of the temple.”
A perfect example is the following contrafactum, in which Guerrero brilliantly transforms a Gregorian melody (“Beata Mater”) into a canon between Soprano and Alto:
* * PDF Download • “Adorémus in Aetérnum” (Guerrero)
REHEARSAL VIDEOS :
A discussion about this post is underway.