Many couples ask me for suggestions for music for their wedding. The church encourages the choice from sacred and classical music, and the following websites may provide some guidance:
The Church strongly discourages the use of recorded music during the liturgy, including during wedding liturgies. Recorded music should only be used when no musicians are available for the wedding. The whole wedding, including the music, is a prayer, and an essential element of any prayer is that it comes from the person who is offering it. Imagine using a CD or tape recording to replace a spoken prayer, like the Lord’s Prayer — it just wouldn’t be the same as saying it yourself. The same reasoning applies to musical prayer.