Now that you’ve got your Open G progressions down, it’s time to add some riffs. These are the melodic phrases that fill the spaces between your chord changes and give your slide guitar playing personality.
Understanding the Important Strings
In Open G tuning, your most important strings for riffs are the 2nd and 3rd strings:
3rd string (G): This is your root note
2nd string (B): This is the major third – hugely influential in defining the G major chord sound
When you’re building riffs, focus on these two strings. They carry the melody while the lower strings handle the bass and rhythm.
Watch: Building Riffs in Open G
A Simple Scale Exercise
Here’s a straightforward exercise to get your slide moving through the chord tones at the 12th fret (octave) position:
1st string: 12th fret, then 10th fret
2nd string: 12th fret, then 10th fret
3rd string: 12th fret
This gives you a descending run through the upper notes of the G chord. Practice sliding smoothly between these positions – the goal is to make it sound like one fluid phrase, not a series of disconnected notes.
The Two-Bar Phrase Structure
One of the most effective ways to organize your playing is using the two-bar phrase concept: two bars of strumming, then two bars of a riff.
So in a 12 bar blues:
Bars 1-2: Strum the G chord
Bars 3-4: Play a slide riff
Bars 5-6: Strum the C chord (5th fret)
…and so on.
This call-and-response structure keeps your playing organized and musical. The rhythm sets up the riff, and the riff answers the rhythm.
The Boogie Woogie Shuffle Pattern
One pattern Colin demonstrates combines fretted rhythm playing with slide fills. You play a shuffle pattern on the lower strings – that classic boogie woogie feel – then answer with a slide phrase on the higher strings.
This is where Open G really shines: you can keep a driving rhythm going on the bass strings while your slide handles the melody up top. It sounds like two guitars playing at once.
Building Your Riff Vocabulary
Start simple: take a phrase you like at the 12th fret and practice moving it to match your chord changes:
G position (12th fret or open) for the I chord
C position (5th fret) for the IV chord
D position (7th fret) for the V chord
The same melodic shape works in all three positions – you’re just transposing it to match the chord.
Adding Expression
Once you’ve got the notes, add expression:
Vibrato: Shake the slide slightly to add warmth
Slides into notes: Approach from below or above
Dynamics: Play some notes louder, some softer
Remember: the slide gives you infinite possibilities for expression between the frets. Use that freedom – but always land on pitch.
Next Steps
Ready to put these riffs into context? Go back to the 12 bar blues in Open G and practice inserting these phrases at the right moments. Or explore more tuning options with Open D slide guitar tricks.
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