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.

It’s the rare ability that allows me to put a note to every sound that I hear, and I mean every sound. For example, I will hear a bird chirp and think to myself, “Oh, that’s G sharp!” My perfect pitch ...

When Mariah Carey belts out a glass-shattering high note, it's impossible for most listeners to identify the tone. Not for her. Carey possesses perfect or absolute pitch (AP), the ability to identify ...

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 ...

It was a Tuesday afternoon seven years ago when I had my first investors meeting. A recent university graduate, I had no clue how to persuade investors or raise money. All I knew was that I needed to ...

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