Open C tuning is a captivating alternate guitar tuning that beckons players into a world of rich harmonies and unique sonic textures. Tuned to C-G-C-G-C-E from the lowest to highest string, Open C presents a landscape ripe with possibilities for both beginners and seasoned guitarists. One of the immediate advantages of this tuning lies in its symmetrical nature; you’ll quickly notice repeating patterns across the fretboard. This inherent symmetry simplifies navigation and unlocks fresh musical ideas, making Open C tuning a surprisingly accessible and rewarding exploration, even if you’re already comfortable with open D or G.
Let’s embark on the journey of tuning your guitar to Open C. While electronic tuners offer precision, learning to tune manually enhances your ear training and deepens your understanding of the tuning itself. Here’s a step-by-step guide to get you started:
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String 6 (Low E to D): Begin by tuning your lowest string (normally E) down a whole step to D. You can achieve this by comparing it to the open D string of a ukulele or by ear if you have a reference pitch.
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String 5 (A to G) & String 4 (D to C): Using the 5th fret method familiar from standard tuning, tune your 5th string (A) down to G, matching it to the D string (now your 6th string) at the 5th fret. Similarly, tune your 4th string (D) down to C, matching it to your newly tuned G string (now your 5th string) at the 5th fret. At this stage, your 4th string (now C) provides a foundational C note to tune the remaining strings.
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String 6 (D to C): Now, lower your 6th string (currently D) down another whole step to C. Tune it down until it matches the pitch of your 4th string (C).
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String 3 (G – Stays the Same): The 3rd string (G) remains unchanged from standard tuning.
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String 1 (High E – Stays the Same): The highest string (E) also remains in standard tuning.
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String 2 (B to C): This is where Open C introduces a slight departure. Tune your 2nd string (B) up a half step to C. While tuning up is generally avoided, this half-step ascent is crucial for Open C and is the only string requiring an upward adjustment.
Congratulations, your guitar is now in Open C tuning! You’ll immediately notice a richer, more resonant sound, particularly in the lower registers. To begin exploring the fretboard in this new tuning, let’s delve into some fundamental scales.
The C Major scale in Open C tuning, as illustrated above, is a great starting point. Notice how the scale patterns are designed to maximize the use of open strings, creating a vibrant and open sound.
Next, explore the C Minor Pentatonic scale. This scale, also optimized for open strings in Open C, is a cornerstone of many genres and will quickly become a familiar and expressive tool in your Open C vocabulary. Instead of simply memorizing these shapes, experiment with them. Move them around the neck, listen to the intervals, and let your ear guide you to new melodic ideas. Consider exploring resources on creating a “fretboard map” for Open C, which can further enhance your understanding and navigation of this tuning.
Beyond scales, chords take on a new dimension in Open C. A distinctive technique in open tunings is to leverage open strings as a drone or sustained harmony while manipulating chord shapes on the lower strings. This creates a suspended and spacious harmonic texture.
The chord shapes shown above are examples of this suspended harmony concept. They may not have conventional chord names, but when used in the context of a song in C major, they provide a rich and evocative harmonic palette, moving beyond basic triads.
For those seeking simpler, first-position chords in C, Open C offers familiar shapes with a unique sonic twist:
While countless chord variations exist in Open C, the key is experimentation. Incorporate 7ths, 9ths, and other extensions to these basic shapes, allowing your ear to guide you toward interesting and personalized chord voicings. You’ll likely discover a wealth of new chord sounds that resonate with your musical sensibilities.
The appeal of Open C tuning extends beyond its unique sound. Several inherent characteristics make it a compelling choice for guitarists:
- Expansive Range: Open C boasts a wide range, from the deep C on the 6th string to the high E, offering a full sonic spectrum for solo guitar arrangements and compositions.
- Versatile and Symmetrical: The repeating string intervals create symmetrical patterns across the fretboard, simplifying scale and chord learning and fostering versatility in playing styles.
- Strong Root in C Major: In the key of C, every open string (C, G, C, G, C, E) is a strong, consonant note, belonging to the C major triad. This allows for rapid playing, seamless transitions, and the execution of unique musical techniques.
- Ideal for Fingerstyle and Slide: The resonant open strings and spacious harmonies make Open C particularly well-suited for fingerstyle guitar and slide guitar playing, lending itself to blues, folk, and contemporary styles.
- Unique Sonic Texture: Open C provides a distinctive and often described as “harp-like” sonic texture that sets it apart from standard tuning and other open tunings.
Many renowned guitarists have embraced Open C tuning, and exploring their work can be highly inspirational. A prominent example is John Butler, particularly known for his instrumental piece “Ocean.” If you’re unfamiliar with John Butler, searching for a live performance of “Ocean” is highly recommended. Despite often using a capo at the 4th fret in live performances of Ocean, effectively transposing to Open E, the foundational techniques and harmonic language are rooted in Open C. Butler masterfully utilizes tapping, hammer-ons, and pull-offs in Open C to create complex and captivating textures. Experimenting with these techniques in Open C will unlock new dimensions in your playing and provide a glimpse into the vast expressive potential of this tuning.
In conclusion, Open C tuning is more than just an alternate tuning; it’s a gateway to a fresh and inspiring guitaristic landscape. Its accessibility, rich harmonies, and unique sonic character make it a worthwhile exploration for guitarists of all levels. So tune your guitar to Open C, experiment with the scales and chords presented, and most importantly, let your ears guide you as you unlock the vast potential of this captivating tuning.
