Define Liturgy
What is Liturgy?

a form or formulary according to which public religious worship, especially Christian worship, is conducted.

Explanation:

Liturgy is the customary public worship performed by a religious group, especially by a Christian group. As a religious phenomenon, liturgy represents a communal response to and participation in the sacred through activities reflecting praise, thanksgiving, remembrance, supplication or repentance. It forms a basis for establishing a relationship with a divine agency, as well as with other participants in the liturgy.

yes it is like you know me bro

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.