Western ears consider a pitch at double the frequency of a lower pitch to be the same note, an octave higher. The Tsimane’, an indigenous people in the Bolivian Amazon basin, do not. “If you only test ...

Absolute pitch is an ability rarely found in the population. Also known as ‘perfect pitch’, it refers to the ability to name a musical note (like C or C-sharp) just by hearing a tone. Importantly, ...