On the command "Forward" the bugler sounded this call and the men would take up the step, advancing in skirmish order.
In Battle Line, the Colors/Guard/Guides step off after the first time through and advance 6 paces. While they are moving the bugler sounds the Forward again. On the second time through, the battalion steps off as one after the final note is sounded.
In column, Forward is sounded one time and the column steps off together after the sounding of the last note.