The bugle is one of the simplest brass instruments; it is essentially a small horn with no valves. All pitch control is done by varying the player's embouchure, since the bugle has no other mechanism for controlling pitch. Consequently, the bugle is limited to notes within the harmonic series. The bugle is used mainly in the military.
... 45 to 64, and 20.7% who are 65 years of age or older. The median age is 44 years. For every 100 females there are 93.5 males. For every 100 females age 18 and over, ...