The
flugelhorn (—also spelled
fluegelhorn,
flugel horn, or
flügelhorn—from 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 Flügelhorn" 1832), which predates Adolphe Sax's work.