oh and nef... like the bagpipes the didge produces a drone note as well... but like the bugle different "notes", sounds and pitches can be achieved using lip pressure and the tongue, etc... As I already stated... "The bugle is one of the simplest brass instruments, having no valves or other pitch-altering devices. All pitch control is done by varying the player's embouchure." I know this because I have played in bugle and trumpet military bands and pipe bands. Not that anyone here believes anything I tell them anyway.
