I am not an expert on liturgical music but here is some of what I have learned. Talk to the parish marriage coordinator or music director for expert advce.
[mood music during guest arrival]
+ Introductory Rites
. + Entrance [song]
. + Greeting
. + Act of Penitence
. + Kyrie Eleison (Latin for "Lord have mercy") [can be sung]
. + Gloria [can be sung]
. + Opening Prayer
+ Liturgy of the Word
. + First Reading - usually from the Old Testament
. + Responsorial Psalm [should be sung]
. + Second Reading - usually from a New Testament Epistle
. + Gospel Acclamation [should be sung]
. + Gospel Reading
. + Homily
. + Marriage rite
. + Profession of Faith (the Nicene Creed)
. + Prayer of the Faithful (prayers of petition) [can be sung]
+ Liturgy of the Eucharist
. + The Preparation of the Gifts - the bread and wine are brought forward and placed on the altar, our monetary offerings are also collected at this time [Song]
. + The Prayer over the Offerings
. + The Eucharistic Prayer - during this prayer the bread and wine change into the Body and Blood of Christ
. + The Lord's Prayer [can be sung]
. + The Rite of Peace
. + The Breaking of the Bread [can be sung]
. + Communion - non-Catholics are requested out of respect not to receive Communion, they may approach the altar with their arms crossed over their chest to receive a blessing [Song]
. + After Communion meditation [song, usually Ave Maria]
+ The Concluding Rites
. + Announcements
. + Blessing
. + Dismissal
. + Procession [song]
With love in Christ.