Ceremony to welcome guests and music played softly in the background while guests are seated. Generally these songs lasts for 20 to 30 minutes before the ceremony. Live wedding song means you have the atmosphere that can not be replicated. Is it a string quartet, harpist, guitarist or singer, inviting and stylish atmosphere.
Ceremony popular Music examples:

• Pachabel's "Canon in D"
• The Wedding March by Wagner or Mendellsohn
• Handel's "Water Music"
• Ave Maria