The march thats played usually when the bride comes down the aisle of the church is the bridal chorus from Lohegrin composed by Wagner. The march thats typically played when the couple leave the altar and walk down the aisle is Mendelssohn's from the Incidental Music from "A Midsummer's Night Dream". Both versions are readily available on any CD that has wedding music as a theme. Hope this helps you. Kim Patrick Clow <[log in to unmask]>