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 ...

Most people rarely sing publically outside of “Happy Birthday.” And since that particular song is usually offered as a group performance, even the reluctant join in, hoping their individual ...

BUFFALO, N.Y. – Most people rarely sing publically outside of a duty-bound rendition of “Happy Birthday.” And since that particular song is usually offered as a group performance, even the reluctant ...