Service Calls.
[807.] [Tattoo], [taps], [mess], [sick], [church], [recall], [issue], [officers'], [captains'], [first sergeants'], [fatigue], [school], and [the general].
[The general] is the signal for striking tents and loading wagons preparatory to marching.
[Reveille] precedes the [assembly] for roll call; [retreat] follows the [assembly], the interval between being only that required for formation and roll call, except when there is parade.
[Taps] is the signal for extinguishing lights; it is usually preceded by [call to quarters] by such interval as prescribed by Army Regulations.
[Assembly], [reveille], [retreat], [adjutant's call], [to the color], the [flourishes], ruffles, and the marches are sounded by all the field music united; the other calls, as a rule, are sounded by the musician of the guard or orderly musician; he may also sound the [assembly] when the musicians are not united.
The morning gun is fired at the first note of reveille, or, if marches be played before [reveille], it is fired at the commencement of the first march.
The evening gun is fired at the last note of [retreat].