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...change its frequency. [soft, high note] [soft, low note] Soft high note vs soft low note diagram If producing a note is so simple, why do the sounds made by each instrument in an orchestra or band sound so different? The pitch is the degree of highness or lowness of a musical note. The pitch depends on how rapid the vibrations are i.e. how high the frequency is. A higher...

...changed by providing a surface coating of paint or other metal, but there is another way of changing the properties of the metallic elements that has been known for thousands of years. Bronze is an alloy of copper and tin, and like copper, its major component, it is resistant to corrosion. Bronze is also much harder than is copper and it can be used in engineering. It...