bugle, brass wind musical instrument consisting of a conical tube coiled once upon itself, capable of producing five or six harmonics. It is usually in G or B flat. Its principal use is for military and naval bugle calls, such as taps and reveille, and, in earlier times, for hunting calls. In the early 19th cent., keyed bugles were made in order to obtain a complete scale.

Soprano brass instrument historically used for hunting and military signaling. It developed from an 18th-century semicircular German hunting horn with widely expanding bore. In the 19th century the semicircle was reshaped into an oblong double loop. Natural bugles use only harmonics 2–6 (producing tones of the C triad) in their calls (“Reveille,” “Taps,” etc.). The keyed bugle, patented in 1810, has six sideholes and keys which give it a complete chromatic scale. In the 1820s valves were added to produce the flügelhorn and, in lower ranges, the baritone, euphonium, and saxhorns.

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The word bugle may refer to:

  • Bugle (instrument), a horn in the "natural" brass musical instrument family
  • Bugle (plant), an often cultivated plant of the family Lamiaceae
  • The sound that an elk makes during the "rut" or mating season
  • A tubular glass or plastic bead sewn onto clothing for decoration
  • Bugle, Cornwall, a village in Cornwall
  • BuGLe, a software tool for debugging applications which use OpenGL
  • Bugles, a corn chip snack
  • The Bugle (newspaper) or Bugle-American, a former underground newspaper in Milwaukee and Madison, Wisconsin.
  • The Daily Bugle, a fictitious newspaper in the Marvel Comics universe
  • The Bugle, a satiric podcast hosted by John Oliver and Andy Zaltzman
  • Bugler (tobacco), a brand of tobacco

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