I feel the need to point out that prior to Vatican II, the state of music in the Catholic Church in the US was already pitiful, at least at the parish level and often even at the level of, say St. Patrick’s Cathedral. There was no time in US history where one could easily find anything other than the maudlin, the sentimental, and the meretricious in music accompanying the Mass. If you had told the average parish choir that they were going to start doing Gregorian and serious polyphony, they would have laughed at you, and if you had tried to enforce it, they would have quit. They only wanted to do Albert Rosewig’s Mass in F and hymns from the St. Gregory and St. Basil hymnals. As far as the organ was concerned, and I am an organist, the only way you ever got a good one was if some individual rich person donated it. Most US Catholic churches had, and still have, organs that are no better than Wurlitzers.
Now we have, forgive me, junk of our own time instead of junk from another time, and only a miracle will get US parishes to put that aside in favor of what is truly a beautiful service to the Lord. The pipe dream of a service consisting of well-performed chant supplemented by well-performed polyphony will never be realized in the US, “On Eagle’s Wings” and “I am the Bread of Life” are here to stay.