I don't know but I do thinkwe should probably find out how brass instruments work. Brass instrumentslike this trumpet make sounds when the air inside themis made to vibrate. Vibrating air ...

The french horn (or horn for short) consists of a very long brass tube, which curls round ... hand in the bell end to change the sound of the instrument, and gets different notes by pressing ...

A brass band from Derbyshire is preparing ... from the mid-19th Century using actual instruments from the era including cornets and horns. Sam Pollard has composed original music for the Burbage ...