If synchronization is lost, it can be regained either by immediately executing commands that should have been executed at an earlier point in {TAIL ~ the playback} of {HEAD ~ the audio track}, or by dropping the commands 
If synchronization is lost , it can be regained either by immediately executing commands that should have been executed at an earlier point in { TAIL ~ the playback } of { HEAD ~ the audio track } , or by dropping the commands
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH