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 ...

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 ...

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 ...

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 ...

Successful startups seem to be the bread and butter of modern business. But what’s one old-fashioned skill they all share? Sales. Every startup company had to master the art of sales in order to ...

Opinions expressed by Entrepreneur contributors are their own. After filming two seasons of Entrepreneur Elevator Pitch, I’ve come to realize that there are three key elements to delivering the ...