What is Open C tuning?

Open C tuning is C-G-C-G-C-E (low to high). Strumming all strings produces a C major chord. The low C string sits two whole steps below standard E, giving exceptional bass depth.

What scales work in Open C?

C major and C major pentatonic are the most natural choices. C Lydian adds a dreamy, cinematic quality. For heavier styles, C minor and C Phrygian deliver dark intensity.

Do I need heavier strings for Open C?

Yes, the low C string needs a heavier gauge to maintain proper tension — at least a .056 or .058 for the 6th string. A set of 12-56 or similar is recommended. Without heavier strings, the low C will sound muddy and floppy.

C Lydian Pentatonic Guitar Scale

Guitar scale in Open C tuning — fretboard diagram

Tuning

Frets

C Lydian Pentatonic in Open C — Notes and Intervals

The C Lydian Pentatonic scale is a mystical five-note scale that highlights the unique Lydian character. On Guitar, it contains the notes C, E, F#, G, B. It creates a floating, celestial atmosphere and is often used in modern jazz and ambient music to provide a sense of brightness and space without the density of a full scale. Commonly used in Fusion, Ambient, Film Scores, New Age. Notable players include Allan Holdsworth, Joe Satriani, Chick Corea. Use over Maj7#11, Maj9 chords. Perfect for dreamy, non-resolving passages in fusion and ambient music.

Notes: C, E, F#, G, B

Intervals: 1P, 3M, 4A, 5P, 7M

Degrees: 1 2 #3 4 5

Formula: 4-W-H-4-H

Number of notes: 5

Tuning: Open C (C-G-C-G-C-E)

Also known as: chinese

About Open C Tuning

Open C tuning (C-G-C-G-C-E) produces a C major chord when strummed open, with an enormous bass depth from the low C string (two whole steps below standard E). The tuning spans a vast tonal range that gives compositions an almost orchestral scope, making it a favorite for both delicate fingerstyle and crushing heavy music.

John Butler's 'Ocean' — one of the most famous modern fingerstyle compositions — is performed in Open C, showcasing the tuning's incredible dynamic range from thundering bass to shimmering harmonics. Devin Townsend uses Open C extensively across his catalog for its massive, wall-of-sound potential. Jimmy Page used it on Led Zeppelin's 'Friends' from Led Zeppelin III. Soundgarden also explored Open C. The three C strings and two G strings create powerful octave resonances that make even simple chord shapes sound huge.

Fingerstyle AcousticProgressive Rock/MetalPost-RockFolkExperimental

Notable artists: John Butler, Devin Townsend, Jimmy Page (Led Zeppelin), Soundgarden, William Ackerman

Best for: Cinematic fingerstyle compositions, progressive metal walls of sound, post-rock textures, and any music that needs enormous tonal range from deep bass to bright treble

Musical Character

EtherealFloatingMysticalBright

Highlights the #4 tritone in just 5 notes, creating maximum 'floating' sensation with minimum complexity. A shortcut to cinematic sounds.

Chord Progressions Using This Scale

I – II – IV – I (Lydian II)Pop / Rock — Euphoric

Explore This Scale in Other Tunings

← All Guitar scales in Open C tuning