kamarahang angolul

concert-pitch▼noun
[UK: kən.ˈsɜːt pɪtʃ] [US: ˈkɑːn.sərt ˈpɪtʃ]

diapason [diapasons]▼noun
[UK: ˌdaɪə.ˈpeɪ.zən] [US: ˌdaɪə.ˈpeɪ.zən]