Yes, you will need to let the registars know which songs you are playing when. Typically there is guests assembling music, bride entrance music, signing of the register music and wedding couple exit music. The tunes would need to be supplied to us on an iPhone or similar with an 3.5mm jack. These should be organised into playlists e.g. “guest assembling music”. Please also make sure these are downloaded onto the device, just in case there are any internet issues on the day!