Music during the ceremony??

I think it depends on the type of ceremony you are having. We are getting married in a Catholic church so there is a specific selection of songs. I have been to ceremonies that are at the reception venue and not in a place of worship. There is usually low playing music in the beginning of the ceremony prior to the bridesmaid entrance while guests are being seated and waiting for the ceremony to begin. But after that, I think you got it, bridesmaids, bride then exit.

Are you marrying in a house of worship or a nonreligious ceremony? A religious ceremony requires you pick from preselected hymns and worship songs. They do not allow anything secular that would not be included in a worship seevice. If you are having a nonreligious ceremony, you can pick anything.

Typically there is 30 minutes of music played while guests arrive and are seated, which includes your bridesmaid entrance.