In this lesson we will learn the chord progression I (One), IV (Four), I, V7 (Five-Seven), I.
This series of chords if very useful when harmonizing songs.
In the key of C Major, the I (One) chord is C,E,G. This is the root position. Play that chord.
Keep the bottom note where it is. Move the middle tone up one-half step, and move the top tone up two half-steps (one whole step). Now you are playing C,F,A. This is the IV (Four) chord (second inversion).
Go back to the I chord in root position; C,E,G.
Now move to the V7 (Five-Seven) chord by keeping the top note in place and move the middle tone
up one-half step, and the bottom tone down one-half step, as we learned in the previous lesson.
Now go back to the I chord in root position.
First play it with the left hand, then with the right hand, and then with both hands.