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.

Mariah Carey, Ella Fitzgerald, Bing Crosby, Mozart, Beethoven, Jimi Hendrix, and Yanni. What do these musicians have in common? They’re all said to have perfect pitch. Perfect pitch (technically known ...

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 ...

Perfect pitch is a superpower. For those of you who didn’t grow up theater kids, perfect pitch is the ability to sing any note dead on with just a prompt. For instance, someone says, “sing an A flat” ...