AGP strives to meet the goals promulgated by the Second Vatican Council concerning the vital role of liturgical music. As described by the Council’s Constitution on Sacred Liturgy, Sancrosanctum Concilium, the musical tradition of the Church is a treasure valued higher than that of any other art and forms a necessary part of the liturgy. Music has a ministerial function in service to Jesus Christ; music therefore increases in holiness and solemnity the more closely aligned it is to the liturgical actions we see. 

In this respect, sacred choral and vocal music receives pride of place but must meet various criteria. They must communicate the Word of God drawn primarily from Scripture but also from officially approved texts by the Holy See and the USCCB. Choral and vocal music also must teach orthodox theology of the Church. Finally, the music must be composed with, according to Sancrosanctum Concilium, a noble simplicity. 
 
 Having met these requirements, sacred choral and vocal music also should foster participation of the faithful through two equally important means: Singing and interiority. Singing occurs in two ways. First, the faithful sings at Mass through hymns, which are designed to accompany the Mass. Second, and most importantly, the faithful sings the Mass through acclamations, responses, Psalms, the Mass Ordinaries, and antiphons. With regard to interiority, active participation occurs through active listening and contemplation as the faithful can see the liturgy unfold as they also listen to choral or instrumental music. Each mode - singing and interiority - is equally important to foster the participation of the faithful during Mass. 

Above all else, Sancrosanctum Concilium reinforces what the Church always has taught regarding the purpose of sacred music: The glory of God and the sanctification of the faithful. Therefore, members of the AGP music ministry give their best efforts to achieve the beauty, dignity, and solemnity demanded by the liturgy.