Definition of key bugle in English:

key bugle

Pronunciation /ˈkiː ˌbjuːɡl/

See synonyms for key bugle

noun

historical Music
  • A bugle fitted with keys to increase the range of sounds it can produce.

    The key bugle was invented by the bandmaster of the Cavan Militia, Joseph Haliday (1772–1827) in 1810.

Origin

Early 19th century; earliest use found in New Times. From key + bugle.