The only way to eliminate calculus build up is by brushing and flossing frequently. It takes pyhsical removal of the placque before it calcified into the hard tarter, or calculus. Some people will have more tendency to build up calculus because of the chemical composition of their saliva.
Brasso is a metal polish designed to remove tarnish from brass, copper, chrome and stainless steel. It is available either directly as a liquid or as an impregnated wadding pad.
Brass instruments do not get their name from being constructed of brass, but rather how the sound is produced. In these instruments, sound is forced through brass fixtures to create a unique sound. Tubas, trumpets, horns, and trombones are examples of brass instruments. It is important to note that saxophones are not, despite the fact that they are often made from brass, as they produce sound from a reed.