Perfect Fourths
Perfect Fourths Tuning Mode
Perfect Fourths tuning (E A D G C F) tunes every adjacent string a perfect fourth apart, creating a consistent interval layout across the fretboard.
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About Perfect Fourths Tuning
Perfect Fourths tuning (E A D G C F) tunes every adjacent string a perfect fourth apart, creating a consistent interval layout across the fretboard.
Benefits of Perfect Fourths Tuning
- Keeps scale, arpeggio, and interval shapes more consistent across strings
- Simplifies fretboard study for players who think in patterns and symmetry
- Extends the upper register compared with standard tuning while keeping low-string logic familiar
Notable Users
Common in theory-focused practice, modern jazz and fusion experiments, and technical fretboard study.
How to Tune to Perfect Fourths
To tune your guitar to Perfect Fourths, follow these steps:
- Start with your guitar in standard tuning if possible
- Use our online tuner above to help you hit the correct pitch for each string
- Tune each string carefully, checking the pitch accuracy as you go
- For drop tunings, be careful not to drop the pitch too far as it may cause fret buzz
- Once tuned, play some chords or scales to ensure everything sounds harmonious
Frequently Asked Questions
Will this tuning require different string gauges?
For lower tunings like Drop C or below, heavier gauge strings (11-56 or thicker) are recommended to maintain proper tension and prevent fret buzz.
Will I need to adjust my guitar's truss rod?
Significant changes in tuning, especially when going to lower tunings, may require truss rod adjustments to compensate for changes in string tension.
Can I use standard chord shapes in this tuning?
For drop tunings, power chords are easier, but other chord shapes will require different fingerings. For open tunings, standard chord shapes won't apply, but you can use simple bar positions.
English guides
Learn Perfect Fourths faster
These guides explain when to use this tuning, how it compares with standard tuning, and what to check if your instrument still sounds off.
Perfect Fourths Guitar Tuning Guide
Learn the notes, tuning process, and tradeoffs of all-fourths tuning before you decide whether the more uniform layout is worth the chord changes.
Guitar Fretboard Notes for Beginners
Use this if you want the more uniform string layout to turn into a clearer note map instead of an abstract theory idea.
Guitar Intervals for Beginners
Helpful if you want to understand why removing the G-to-B tuning break changes pattern logic across the neck.
Related Tuning Modes
Explore other tuning modes that complement Perfect Fourths tuning
Standard
Standard tuning (E A D G B E) is the most common tuning for guitar, providing a balanced sound across all strings.
Full Step Down
Full Step Down tuning (D G C F A D) drops all strings a whole step, creating a notably deeper sound.
Open C
Open C tuning (C G C G C E) creates a C major chord on open strings, offering a bright, resonant sound.