Thanks for the explanation. I'm a nominal Baptist (that is, I don't go to church much), so that one would have whizzed right over my head.
You’re welcome. “Real” Catholics are real picky that liturgical (”within the mass”) music should always instruct correct doctrine. That’s why a lot of conservative Catholics hate Marty Haugen, the St. Louis Jesuits, etc.: They write real Catholic-SOUNDING music, without specifically heretical lines, but they out the emphasis on an entirely wrong point. For instance, “We bring a sacrifice of finest wheat,” is technically true, but downright offensive when the redemptive sacrifice is the eternal sacrifice made by Christ on Calvary, which we participate in by offering up our sinful, worldly ways (mortification).