The Theory of I IV V Explained
In this lesson, we’ll take a closer look at how the I, IV, and V chords are built from the major scale — and why they’re so important to slide guitar (and most Western music). We’ll break down the intervals that create these chords, use the key of D as a practical example, and map them onto the fretboard using open tuning. If you’ve ever wondered how to connect theory to what you’re playing, this is the bridge that makes it all click.