Play a note, any note — on your piano, your harp, your synthesizer, your kazoo. University of Delaware junior David Krall can tell you exactly which note you’re playing and which octave it lives in.

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 ...

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, ...