A bugle call is a short tune, originating as a military signal announcing scheduled and certain non-scheduled events on a military installation, battlefield, or ship. Historically, bugles, drums, and other loud musical instruments were used for clear communication in the noise and confusion of a battlefield. Naval bugle calls were also used to command the crew of many warships (signaling between ships being by flaghoist, semaphore, signal lamp or other means).
A defining feature of a bugle call is that it consists only of notes from a single overtone series. This is in fact a requirement if it is to be playable on a bugle or equivalently on a trumpet without moving the valves. (If a bandsman plays calls on a trumpet, for example, one particular key may be favored or even prescribed, such as: all calls to be played with the first valve down.)
Bugle calls typically indicated the change in daily routines of camp. Every duty around camp had its own bugle call, and since cavalry had horses to look after, they heard twice as many signals as regular infantry. "Boots and Saddles" was the most imperative of these signals and could be sounded without warning at any time of day or night, signaling the men to equip themselves and their mounts immediately. Bugle calls also relayed commanders' orders on the battlefield, signaling the troops to Go Forward, To the Left, To the Right, About, Rally on the Chief, Trot, Gallop, Rise up, Lay down, Commence Firing, Cease Firing, Disperse, and other specific actions.
History
The military use of signal instruments dates to ancient times. The Romans used a form of bugle in their Legions. Records show the use of an early bugle in Hanover by 1758, and the British infantry introduced the Halbmondbläser in 1764. The bugle gained widespread use in horse mounted units, where the more common signals of drums and fifes were impractical. At the 1776 Battle of Harlem Heights, the use of British bugle calls was taken as an insult by United States forces, who mistook them for hunting calls.
The bugle became more common with United States units during the War of 1812. Through the 19th century, the bugle gradually replaced the Fife. By the time of the United States Civil War, each company was allotted two buglers.
Military use of bugles waned as new technology provided improved methods of field communication, but bugle calls continue to be used as traditional signals that mark daily events or special ceremonies. United States Army posts, for example, play Reveille at the start of a work day. In addition, the use of bugles and bugle calls is maintained in traditional Drum and bugle corps and some drum corps.
Bugle calls
"Adjutant's Call": Indicates that the adjutant is about to form the guard, battalion, or regiment. "Alarm" (as played by Sam Jaffe near the end of Gunga Din) "Assembly": Signals troops to assemble at a designated place. "Attention": Sounded as a warning that troops are about to be called to attention. "Boots and Saddles": Sounded for mounted troops to mount and take their place in line. "Call to Quarters": Signals all personnel not authorized to be absent to return to their quarters for the night.
"Charge": Signals troops to execute a charge, or gallop forward into harm's way with deadly intent. "Church Call": Signals that religious services are about to begin.The call may also be used to announce the formation of a funeral escort from a selected military unit. "Drill Call": Sounds as a warning to turn out for drill. "Fatigue Call": Signals all designated personnel to report for fatigue duty. "Fire Call": Signals that there is a fire on the post or in the vicinity. The call is also used for fire drill. "First Call": Sounds as a warning that personnel will prepare to assemble for a formation. This call is also used in horse racing, where it is known as Call to the Post. In that context, it indicates that jockeys need to have their mounts in position to be loaded into the starting gate. "First Sergeant's Call": Signals that the First Sergeant is about to form the company. "Guard Mount": Sounds as a warning that the guard is about to be assembled for guard mount. "Last Post": Used at Commonwealth of Nations military funerals and ceremonies commemorating those who have been killed in a war. "Mail Call": Signals personnel to assemble for the distribution of mail. "Mess Call": Signals mealtime. "Officers Call": Signals all officers to assemble at a designated place. "Pay Call": Signals that troops will be paid. "Recall": Signals duties or drills to cease.