Volley fire was intended to deliver massed effects against massed targets. Fire at will allowed the soldiers to fire at their own time, when they had their target in their sights.
Unison.
The verb for unison is "unify."
Unison in French is 'unisson'.
together
At the same time.
Yggdra Unison happened in 2009.
Unison Industries's population is 2,200.
Unison Industries was created in 1980.
The birds flew in unison.
The word "unison" is a noun.
"Unison" can be either a noun (much more often) or an adjective. Example as an adjective: The fourth part of the oratorio is a unison anthem. Examples as a noun: The fourth part of the oratorio is sung in unison; how pleasant it is for a family to dwell in unison!
Banduria is tuned (from high to low): G (3 strings in unison) D (3 strings in unison) A (3 strings in unison) E (2 strings in unison) B (2 strings in unison) F# (1 string)