Drummer's Call | Revolutionary War Drill

British and American drum signal for Drummers' Call.
This signaled a warning to the men - to prepare for assembly, guard mounting, or various roll calls, such as during the Retreat or the Tattoo.
Windham states it can also be beaten to signal "Club Arms while marching".
Video includes commands, as they appear in the 1764 British Drill.
The corresponding drum beating follows.
There are stick clicks that mimic the "1-2" spoken in drill to denote the movements.