This sounds like a guitar harmonizer pedal, but it's not! (playing in 4ths on the guitar)
Jul 15, 2025Today’s video is all about how to play harmonically using the interval of 4ths on guitar.
Practicing in intervals is a powerful way to improve your musicianship—and 4ths have a particularly modern, open, and unique sound, especially compared to more traditional harmonizations like 3rds or 6ths.
I love this sound, and I think you will too. It’s like using a guitar harmonizer pedal, except you’re actually just playing it!
As always, I’m not just giving you tips—I’m walking you through how to harmonize every major scale shape in 4ths, including:
- How to cross strings smoothly (this is the tricky part!)
- The exact fingerings to use
- Full tab, notation, and fingerings shown clearly on screen
If you’ve been curious about playing in 4ths or want to explore a more contemporary harmonic sound, and sound like you’re using a guitar harmonizer pedal, then this lesson is definitely for you.
Thanks for watching! Feel free to leave a comment below the video on YouTube to say hi. :)
Cheers,
~ Jared
🎼 Want to try it with other scales? FREE PDF: Click here to download the most important scale diagrams for guitar.
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