We went to our nephews wedding Saturday. It was Catholic. Full mass and all. I learned years ago. The song Here Comes the Bride is not allowed to be played. Something to do with something satan or satanic. After church was over. I mention it to dh. He says yeah it's one of those not allowed songs. If this is true. You would think the organist would know this. Assuming they are Catholic. Tell the couple when planning their music. This or that song is not allowed and why. Or the priest would of said something ahead of time.