Sync lock makes one deck follow the other's tempo and keeps their beats together. It needs both tracks to be analysed so each has a beat grid.
- Load and analyse both tracks.
- Press SYNC on the deck that should follow (or ⌘S for Deck B).
- Listen: the beats should stay together without drifting.
Tip. If the beats do not line up, the track's beat grid may be slightly out. See the troubleshooting article.