Oh, please. Are you seriously suggesting equivalency? The formulaic slop played at teen masses is the antithesis of radical; it's conventional down to the core. Bach's music will still be astonishing hearers when no one remembers what a teen mass even was.
my 15-year-old son, with whom I have been struggling to keep him interested in his faith, is suddenly very interested in the church because he gets to play two weekends a month.
I sympathise with your situation, but respectfully suggest your real problem here is bad religious formation. Your son needs to have it put to him that right worship is about far more than self-expression. When the "faith" we practice is utterly self-referential, it's nothing more than self-worship. Self-absorption is the dominant secular value, and I'm not surprised to read that your son too is slurping it up. But the Church's job is to rescue us from that prison, not to affirm it.
You've obviously read your Ratzinger...
BTW, I doubt that Bach's "stuff" was radical in its day.
JSB took what already existed and built on it. He used a number of Gregorian Chant tunes (!!) as well as popular hymnody as foundation for most of his music.
Evolution, yes. Revolution? Nope.
Did you catch Arroyo's interview with then Cardinal Ratzinger on EWTN that they played after his election yesterday? It was done about 18 months ago and is the only existing recorded interview with the Cardinal in the English language.
Anywas he said almost exactly the same thing that you are saying above. I believe his words were "the Mass is where we come to meet the transcendent God" He talked about the "reform of the reform" specificially to re-sacralize the mass that had been distorted after VII into some type of "communal expression".
I am very hopeful for what Benedict XVI may accomplish. The sad fact is tho his effectiveness will be limited until he can begin to name some Bishops.