It always comes to me when I have to decide what system of pronouncing Latin I am to use. It is logical to believe that most sacred works in Classical Music were written before the Vatican unified the Ecclesiastical Latin in the early 20th Century. There are pieces by Mozart, Fauré, Verdi et cetera. All the Latin pronunciations in the CD's are in Ecclesiastical Latin. But I am not sure if this is really an authentic way to perform these works. Any suggestions?