II. How is the Liturgy Celebrated?

From The Catechism of the Catholic Church

1157
Song and music fulfill their function as signs in a manner all the more
significant when they are “more closely connected . . . with the
liturgical action,”²² according to three principal criteria:
beauty expressive of prayer, the unanimous participation of the assembly at the
designated moments, and the solemn character of the celebration. In this way
they participate in the purpose of the liturgical words and actions: the glory
of God and the sanctification of the faithful:²³

PART TWO: THE CELEBRATION OF THE CHRISTIAN MYSTERY

SECTION ONE THE SACRAMENTAL ECONOMY
- CHAPTER TWO THE SACRAMENTAL CELEBRATION OF THE PASCHAL MYSTERY
  - Article 1 CELEBRATING THE CHURCH’S LITURGY
    - II. How is the Liturgy Celebrated?

From The Catechism of the Catholic Church – rosary.team