Traditional music for a Bridal processional could include "Canon in D" or "Jesu, Joy of Man's Desiring". 

 

Add "Ave Maria" for a spiritual element. 

 

"Spring" and the "Brandenburg Concerto #3" are popular prelude or recessional pieces. 

 

For a more contemporary sound, try "All of Me" by John Legend or "A Thousand Years" by Christina Perri.