The Synchronization Master and Slave Relationship

In all synchronization situations, regardless of the simplicity or complexity of your studio configuration, the following rules apply:

Logic Pro is capable of acting as master or slave, as are many devices.

Important: In many (if not most) cases, you will need to manually set each synchronization-capable device—including Logic Pro itself—to act as master or slave. If you don’t do this, there will be multiple master devices in your system, which will result in synchronization errors.