General Synchronization project settings in Logic Pro for iPad

Sync Mode pop-up menu: Defines how the tempo in Logic Pro for iPad syncs with other devices.
- Internal: Selects the internal timer of Logic Pro, with Logic Pro transmitting MIDI clock to synchronize external devices.
- Ableton Link: Selects Ableton Link mode, which uses a technology that synchronizes the musical beat, tempo, and phase of Logic Pro with multiple applications running on one or more devices on the same network.

Two additional options become available once you choose Ableton Link from the Sync Mode pop-up menu:

Transmit and Receive Start/Stop: When turned on, transport start and stop commands are shared between all Link users in a session who have the feature turned on.
Peers connected display: The number shows how many other devices (on your iPad and on the local network) are participating in the Ableton Link session.
This is the same number inside the circular progress bar shown in the display in the control bar.

Ableton Link

Choosing Ableton Link in the Sync Mode pop-up menu results in the following changes in your project:

The Sync button appears in the control bar next to the display.
You can tap the button to switch the sync mode between Ableton Link (blue button) and Internal (gray button), which is linked to the Sync Mode setting in the General Synchronization project settings.
The Ableton Link status field is added to the right side of the display; it shows a circular progress bar that represents one measure with a full rotation, with the 12 o’clock position indicating the downbeat. The number inside the ring shows the number of other participants in your Ableton Link session.
The tempo digits in the display are blue to indicate that the Ableton Link session controls the project tempo.
The Tempo track in your project is turned off. Tap the Tempo track to open its menu with a new option, Reactivate Tempo Track. See Use the Tempo track with Ableton Link.
The playhead turns blue.

Tap the More button on the right side of the control bar, then tap Settings.
Tap Project Settings, then tap Synchronization.
Tap the Sync Mode pop-up menu and choose Ableton Link.
Tap the Done button or swipe down to close the settings.
The Sync button appears in the control bar, indicating by its blue color that Ableton Link is turned on.

Tap the More button on the right side of the control bar, then tap Customize Control Bar.
Tap Modes, then tap the Sync switch.
The Sync button appears in the control bar.
Tap outside the Customize Control Bar dialog to close it.
Tap the Sync button in the control bar to select it.
The Sync button turns blue to indicate that Ableton Link is on.

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