Sounds from Reënactment

The following sounds were recorded on the Lexington Green on the morning of April 15, 1996. Recording was done by Ward Poor, i.e. not by students.

Roll call by the Colonial Militia.
- Jedidiah Munroe
- Samuel Hadley
- Daniel Mulliken
- ? Harrington
Drum Roll by advancing British soldiers.
"Fix your . . . . Bayonets!" . . . [sounds of bayonets]
Shoulder your . . . . arms!
? . . . . Huzzah!
? ? ? . . [drum beat] . . "He won't get my gun!" . . First Shot.
Heavy Gunfire & shouting.

Questions:
Is this a "Roll Call", or is it "sounding off", or what?
What is Harrington's first name?
"Drum Roll"? Drum beat? What is the musical term for this? What is military significance?
Note the peculiar rhythm of this command: How do they get the timing between "fix your" and "bayonets"? Is it a certain number of marching steps?
Ditto for "Shoulder your . . . arms!"
What is the command before "Huzzah!"? (or was it "Hurrah!"?)
The drumming before the first shot sounds menacing . . is there some military name for this?