How to Harmonize

1

Sing a C major triad to get a feel for intervals. A triad is a chord created by 3 notes; the C major chord is made of the notes C-E-G. Sing or hum along as you play the notes on a piano (or a virtual keyboard app) one at a time. Then play all 3 notes on the piano at the same time, and notice how the notes blend and agree with each other.^[1]

• The root note in this chord is C, and the distances between C and the other notes in the chord are called intervals.
• Different intervals create harmonies with distinct tones. In relation to C, E is a major third and G is a perfect fifth. These intervals blend well with the root note, creating a pleasing harmony.

2

Practice finding a root note’s major third. Find the C key on your keyboard. If you count the 4 black and white keys to the right, you’ll land on E. For any root note, a note that’s 4 half-steps away will always be a major third.^[2]

• On a piano, a half-step is the distance between 2 keys that are right next to each other. For a white key that's next to a black key, the black key counts as a half-step and the next white key over is a full step. However, white keys like E and F, which aren't separated by a black key, are a half-step apart.
• Sing or hum along as you play root notes and major thirds on the keyboard. Play a note, then count 4 half-steps and play that note. Singing a root note and its major third will help you learn how to find a good harmony note by ear any time you hear a melody.