This is probably not the best choice. When your guests arrive to your ceremony they are looking for a signal that says the ceremony is about to begin. If you have background music while your guests arrive then that lets them know that the ceremony will be starting shortly.
If there is no music, then you will probably have to get your guests rounded up before the wedding starts so that you can get them to sit down. With the music playing, this is their cue to go ahead and sit down because the ceremony will be beginning shortly.
Of course as most of us already know, most weddings do not start on time! However, if you pick some great pre-ceremony music then your guests will be happy sitting and waiting for the bridal party, and of course for the bride to arrive and go down the aisle!