Lesson 2: How To Label Piano Keys Part Two - Piano Keyboard Layout (Black Keys). Here's part two in our series of piano lessons for beginners. For more, check out my Piano Lessons For Beginners' course at www.udemy.com/pianolessons (Watch lesson 1 first, where we take a look at the white keys.) In this lesson, you will learn how to name the black piano keys. You will learn about sharps and flats, with an emphasis on sharps, first of all. You will know all the sharp notes of the black piano keys.