Human made any audible objects can be referred to as musical instruments, all instruments are" a particular timbre, or make a sound, or a certain number of voice pitch, or at least provide material in a certain period of time continuous noise" ( Scherf Na, A.Schaeffner,1946). This definition lists the timbre, pitch and rhythm parameters, that can study all the" daily music" ( from the percussion of bamboo to western ancient piano ), regardless of the structure of simple or complex, method of use is different, historical, geographical, cultural origin so different. Musical features and concepts in various ethnic cultures, each period are not the same。
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