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 ...

Both light and sound travel as waves, with characteristics that allow people with typical vision and hearing to perceive and categorize them when they reach their eyes and ears: “That’s a small red ...

A melody is more than just a sequence of notes. Rhythm, variations in loudness and the length of musical phrases all enhance the sequence of notes to make a melody “original”. Each of these adds a ...