

"Song - SPP at Play Start and Cycle Jump" mode sends an SPP command when you start playback and every time Cycle mode repeats."Song - SPP at Play Start and Stop/SPP/Continue at Cycle Jump" mode sends a start command to an external device when you start playback from the beginning of your Logic song. If you don't start playback from the beginning, a Song Position Pointer (SPP) command and then a Continue command are sent to start playback on the external device.Make sure to enter the number of bars in the pattern in the "Clock Start: with a pattern length of Bar(s)" field, under the MIDI Clock mode pop-up. "Pattern" mode sends a Start command to an external device like a sequencer to start playback of a pattern on the device.Choose a mode from the Clock Mode pop-up menu that works best for your workflow and the MIDI devices you’re using:

The MIDI clock mode determines how and when Logic sends MIDI clock to your destinations. After you add destinations and set options, set the MIDI clock mode for your project.
