Pitch pipe
volume
British pronunciation/pˈɪtʃ pˈaɪp/
American pronunciation/pˈɪtʃ pˈaɪp/

Định Nghĩa và Ý Nghĩa của "pitch pipe"

Pitch pipe
01

a small pipe sounding a tone of standard frequency; used to establish the starting pitch for unaccompanied singing

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