The Bugle is a simple brass instrument consisting of a length of tube with a small bell at one end and a mouthpiece at the other.
There are no valves or slide to allow the length of tube to be altered and, therefore, only a limited set of notes can be played.
It is used in the military as a signalling instrument and is best known for its use at Remembrance Day services in November in the UK (and Canada and Australia) to mark the end of the 1st World War on 11th November 1918, when it is used to play The Last Post and Reveille.
You can read about how the bugle and other fixed length brass musical instruments work, and the notes that can be played on them, on our page on Harmonics.
You can find out more about the Bugle on wikipedia
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