Watch the Chapter 12: Harmonizing Scales with Triads online guitar lesson by Frank Vignola from Modern Method for Guitar

This lesson builds on previous horizontal lessons, incorporating the study of inversions in a logical approach. Most chord progressions are built using the harmonized major scale, so this lesson is essential to your progress.

1. We start by playing a C triad on the top strings.

2. Identify the next triad in the harmonized scale by playing the notes of the C major scale horizontally on each of the 3 strings. In other words, play a C major scale on 3 strings at the same time with different starting and ending notes, strumming the 3 notes once you identify the next chord.

3. Take the same approach to the other sets of strings. Starting on a C triad, move up the C major scale, playing the notes on each of the strings simultaneously.

4. After you have done this exercise in the key of C, work through the other keys.

5. Finally we can apply the same approach to spread inversions, which are the same chords skipping one string.