How To: Play piano by ear for beginners

When you're a piano player, showing off book learning is nice, but have you ever noticed that the most renown piano stars can improvise like nobody's business? Though their melodic tunes seem to emerge from the top of their heads, piano experts have spent years training their ears to be able to play piano by ear.

Get indoctrinated into this difficult yet helpful piano skill by watching this video, which teaches you how to tell the difference between the pitch of different notes.
The video focuses on a very well known song, "Mary Had a Little Lamb," so you can easily follow along.