I love liturgical chant, I love the gracious solemnity of it, the fact the music is so much part of the of the prayer. I am would like to have more of it in our liturgy, at the moment we have Missa di Angelus every Sunday except during Advent and Lent when we use a mixture of Mass XVI/XVII. We don't sing the Pater or the Credo partly because I am a little afraid of introducing more Latin because, mainly because older people complain they can't understand it and want to understand what they are praying. The counter argument to this is that very few Muslims understand Arabic. Jews understanding Hebrew is a comparatively new phenomena, until the coming of Zionism Hebrew was only a liturgical language, even Jesus spoke Aramaic not Hebrew. Having a special language for the liturgy or prayer seems to be part of religion. Who nowadays speaks Sanskrit or "Church" Slavonik, they are solely liturgical languages, and what about "toungues" that extra-ordinary muttering encountered among Charismatic groupings.
Anyhow, as a follow-up the piece on the Pope's comments on liturgical music read the whole of this article
Understanding God is hard work, the argument goes, and similarly, music in church should challenge us. A sermon that says only what people want to hear would lack moral authority. The same goes for music.
The chants sung at Regina Laudis are more than 1,000 years old. But Sister Elizabeth Evans says "old'' doesn't mean "irrelevant.''