Keep It Groovy: Three Major Triad Shapes Every Bass Player Should Know
If you’ve learned one way to play a major triad on bass, let’s learn two more! This exercise gets us out of one familiar position and moving up the fretboard with different shapes and starting fingers.
We’ll play a G–C–D–C progression in 6/8 time, practicing root notes, chord tones, and position shifts along the way.
Major Triads and the G–C–D–C Progression
A major triad contains the root, major third, and fifth. In G major, that’s G, B, and D. For this exercise, we’ll add the octave and play:
Root, third, fifth, octave, fifth, third.
Those six notes fit nicely into a bar of 6/8, with the next chord’s root landing on the following downbeat.
Our progression is I–IV–V–IV in G major. First, find the roots on your E string: G at the third fret, C at the eighth fret, and D at the tenth fret. Practice landing on G with your index finger, C with your middle finger, and D with your pinky.
Three Major Triad Shapes to Practice
G major: Index-finger start. This elongated shape spans five frets. Play G, B, D, and the octave G, then descend through D and B. Use index, pinky, middle, middle, middle, pinky. Then shift up to C.
C major: Middle-finger start. This is the familiar four-fret shape you may already know. Your middle finger plays the root, your index plays the third, and your pinky plays the fifth and octave. The complete fingering is middle, index, pinky, pinky, pinky, index.
D major: Pinky start. Stay in the same position. Your pinky is already lined up with D at the tenth fret. Use your ring finger for the third and your index for the fifth and octave: pinky, ring, index, index, index, ring. This four-fret shape spans all four strings, giving your plucking hand something to practice, too!
Connect the Shapes in 6/8 Time
Put the shapes together over G–C–D–C, then return to G. Keep your starting fingers in mind:
Index, middle, pinky, middle, index.
Shift from G to C, stay in position for D and the return to C, then move back down to G. Play evenly, aiming for each new root on the downbeat.
This exercise helps us see the same harmony in different parts of the neck. When you want to move into a higher register during a song, those roots, chord tones, and octaves will feel more familiar.
Get a little comfy up there! Happy practicing, and keep it groovy.
Ryan Madora is a professional bass player, author, and educator living in Nashville, TN. In addition to touring and session work, she teaches private lessons and masterclasses to students of all levels. Visit her website to learn more!
