  the flugelhorn (âalso spelled fluegelhorn, flugel horn, or flÃ¼gelhornâfrom german, wing horn, ) is a brass instrument that resembles a trumpet but has a wider, conical bore. some sources falsely consider it to be a member of the saxhorn family developed by adolphe sax (who also developed the saxophone). other historians assert that it derives from the valve bugle designed by michael saurle (father) in munich in 1832 (royal bavarian privilege for a "chromatic flÃ¼gelhorn" 1832), which predates adolphe sax's work. ==etymology== the german word flÃ¼gel translates into english as wing or flank. the instrument was used on the battlefield to summon the flanks of an army. ==structure and variants== the flugelhorn is built in the same b pitch as many trumpets and cornets. it usually has three piston valves and employs the same fingering system as other brass instruments, but four-piston valve and rotary valve variants also exist. it can thus be played without too much trouble by trumpet and cornet players, though some adaptation to their playing style may be needed. it is usually played with a more deeply conical mouthpiece than either trumpets or cornets (though not as conical as a horn mouthpiece). some modern flugelhorns feature a fourth valve that lowers the pitch a perfect fourth (similar to the fourth valve on some euphoniums, tubas, and piccolo trumpets, or the trigger on trombones). this adds a useful low range that, coupled with the flugelhorn's dark sound, extends the instrument's abilities. more often, however, players use the fourth valve in place of the first and third valve combination, which is somewhat sharp (compensated for on trumpet
B-flat_instruments Brass_instruments