Keyed bugle

Keyed bugle (Fr.: clairon chromatique, clairon à clefs, bugle à clefs; Ger.: Klappenhorn [originally: Klappenflügelhorn]; It.: cornetta a chiavi), bugle to which Joseph Halliday, an Irish bandmaster stationed in Dublin, applied 5 keys in order to bridge the gap in the natural scale and for which he was granted a patent on May 5, 1810. Soon thereafter a sixth key was added in England, and later up to 4 more were added on the Continent. With the exception of the lowest all were closed keys. Also…