FOUND THE FOLLOWING letter engaging. It was written by Dom Gajard, perhaps the greatest Gregorian conductor of all time. It was translated by a Jesuit priest named Paul Callens, who taught Gregorian chant in Corpus Christi, TX, for many years. Click here to view a picture of Fr. Callens conducting his Schola.
* * 1956 Memorandum • Dom Gajard on Vernacular Adaptations & Pius XII Psalter