61. [...] In the dioceses of the United States of America, the following may also be sung in place of the Psalm assigned in the Lectionary for Mass: either the proper or seasonal antiphon and Psalm from the Lectionary, as found either in the Roman Gradual or Simple Gradual or in another musical setting; or an antiphon and Psalm from another collection of the psalms and antiphons, including psalms arranged in metrical form, providing that they have been approved by the United States Conference of Catholic Bishops or the Diocesan Bishop.

If we simply did the Psalm that the church directs us to do, my seven-year-old would be reading, (and wanting to read) the scripture passages along with the lector, choir, and priest each week. However, because of frequent "substitution" the idea of following along at mass is a non sequitur.

• 
  She has no interest in the MagnifiKid because of the substitution. She was reading the scripture as it was being proclaimed, but when the Psalm was switched she put the booklet down. "It's not in here!" she protested. Now, she is only open to reading when the Indian priest reads the Gospel, and his heavy accent gets in the way of her understanding if she simply listens. She's easily distracted by her 2-year-old sister. She's more interested in her sister than the liturgy. If she was reading/praying along, she might be able to enter into the mass more deeply.
  
  
• She sees the choir director/music director as the person who has the power to change stuff at mass.