Correct spelling is, of course, Fluegelhorn.
A
brass instrument similar in appearance to a
trumpet but with a gradual
taper in its
diameter along the length, rather than the more abrupt opening on a trumpet.
The sound is
warmer,
softer and
darker than that of a trumpet.
I think that the name comes from the
German word "
fluegel" which means wing. Fluegel is also used in German for a
grand piano due to its shape, so I imagine that the gradually flaring shape of the fluegelhorn gives it its name.
See also,
musical instruments.