You and your fiancé need to work as a team.
Together, you should coordinate your wedding production and all the movements you each will take. Before you jump in, create a shared platform where you can record all your wedding details.
Distribute all the tasks evenly and break them up in to stages. Try to allocate tasks that play to one anothers strengths. If your husband has a keen eye for music, why not give him the job for sourcing the musicians?
The final decisions should always be collaborative, so check in with one another from time to time before you firm up a booking. If you can keep in step you will gracefully dance through the process.