Certainly it can be the same song. If you are having it played live, you can ask the musician or musicians to change it up a bit for your entrance, such as swelling the music or slowing the tempo, etc. But it's not necessary.
I'm so happy somoene asked this even though i'm a year late to the party...I love Pachelbal's Canon in D and I think using it just for the bp ends up cutting it off at the best part!
Re: music for bridesmaids and bride
I'm so happy somoene asked this even though i'm a year late to the party...I love Pachelbal's Canon in D and I think using it just for the bp ends up cutting it off at the best part!