I have not seen yet a copy of the YouCat, the catechism prepared for young people. That said, I was amused by an excerpt, a paragraph from the same, a reader sent today:
183. Why is there music at liturgies, and what kind of music must it be to be suitable for liturgy?
Where words are not enough to praise God, music comes to our aid. [1156–1158, 1191]
When we turn to God, there is always something ineffable and unsaid left over. Then music can help out. In rejoicing, language becomes song—that is why the angels sing. Music in a worship service should make prayer more beautiful and more fervent, move more deeply the hearts of all in attendance and bring them closer to God, and prepare for God a feast of melody.
Someone thought young people are smart enough to understand “ineffable”.