Most guitarists think of chords as full six-string shapes — G, C, D, the usual suspects. But strip a chord down to its three essential notes and you get a triad, and triads open up a completely different approach to rhythm guitar. This lesson connects guitar scale theory to practical rhythm playing using a riff inspired by CCR’s “Up Around the Bend.”
From Bar Chords to Triads
Colin starts with the F-shape bar chord. Move it up to the 10th fret and it’s a D major. Now strip away the bottom three strings — you’re left with just the 1st, 2nd, and 3rd strings. That’s your D major triad: three notes, three strings, one clean shape.
The fingering: bar the 1st and 2nd strings at the 10th fret with your first finger, and put your second finger on the 3rd string at the 11th fret. Slide the whole shape down to the 5th fret and it becomes an A major triad. Those two shapes — D at the 10th fret, A at the 5th — are the foundation of the entire riff. This same concept applies to using triads in your solos too.
The Picking Pattern
The intro to “Up Around the Bend” uses a chord arpeggio — picking through the triad notes individually instead of strumming them. Here’s the sequence:
Strike the open D string (4th string) first — that’s your bass root note. While it rings, slide your second finger up the 3rd string to the 11th fret. Then drop your first finger to bar the 1st and 2nd strings. Pick up on the 1st string, then the 2nd string. Pick down on the 3rd string. Pick up on the 2nd string again. Let everything ring together.
The key is letting that open D bass note sustain underneath the whole arpeggio. That low root anchoring the higher triad notes is what gives the riff its full sound.
Moving Between D and A
The same picking pattern works on the A triad at the 5th fret. Strike the open A string (5th string) as your bass note, slide up to the 6th fret on the 3rd string, and run the same arpeggio pattern. The verse alternates between D and A, and the chorus adds G.
Colin points out that the verse of “Up Around the Bend” uses a different technique — the double-stop interval pattern with the perfect fifth and major sixth — and the triads come in for the famous intro. The two approaches complement each other: intervals for the rhythm, triads for the melodic intro.
Why Triads Matter for Theory
A chord needs at least three different notes to be a chord. Two notes is an interval (or “diad”). The power chord you already know? That’s technically just an interval — root and fifth. Add the third and it becomes a real chord with a major or minor quality.
Understanding triads connects your chord knowledge to your scale knowledge. Every note in a triad comes from the scale. Once you see that relationship, you can build chords anywhere on the neck from any scale position. That’s the theory payoff.
If you want to go deeper into how chords and scales connect, the Rhythms & Riffs of Rock & Roll course covers this in full detail.