This unique tuning, affectionately named "Facgcc Tuning", presents a rich and resonant soundscape. As the original description notes, it's a challenging yet rewarding tuning for exploring the fretboard and expanding your harmonic vocabulary. The open strings immediately evoke a sense of spaciousness and depth.

The lowest three strings (F2, A2, C3) beautifully form a clear F Major triad, providing a solid, fundamental bass. This immediately allows for powerful open F Major chords. The addition of G3 on the 3rd string over this F Major base creates an Fmaj(add9) sonority, offering a sophisticated, almost jazzy or folk-like flavour that is both bright and full. This open chord is very musical and can serve as a strong foundation for songwriting or improvisation.

Perhaps the most striking feature is the unison C4 on the top two strings. This creates a powerful drone or melodic potential. It allows for interesting voicings where the high C can ring out, providing a bright, sustained top end. This unison can also simplify certain melodic patterns or arpeggios across the highest strings, making them feel more intuitive. The arrangement makes fingerpicking patterns particularly rewarding, as the resonant open Fmaj(add9) chord can sustain while higher melodic lines are played.

Due to the strong intervallic relationships, many chords within reach will naturally gravitate towards F Major or C Major tonalities. Barre chords will translate well, allowing the Fmaj(add9) shape to be moved up and down the neck. Open string drones and pedal tones will be highly effective, especially with the F, C, and G notes ringing out. Try exploring open voicings that utilize the unison C4 for unique melodic and harmonic textures.

Technical Analysis

The open string notes for this tuning are: F2, A2, C3, G3, C4, C4 (from low E to high E string).

Let's break down the intervals between adjacent strings:

• 6th String (F2) to 5th String (A2): Major 3rd (4 semitones)
• 5th String (A2) to 4th String (C3): Minor 3rd (3 semitones)
• 4th String (C3) to 3rd String (G3): Perfect 5th (7 semitones)
• 3rd String (G3) to 2nd String (C4): Perfect 4th (5 semitones)
• 2nd String (C4) to 1st String (C4): Unison (0 semitones)

The combined open notes form an Fmaj(add9) chord (F-A-C-G-C). The lowest F provides a strong root, while the G adds the distinctive 9th. The unison C4 on the top two strings is a unique feature, providing extra resonance and melodic opportunities.

How to Tune

To achieve the "Facgcc Tuning" from standard E Standard tuning, follow these adjustments:

• 6th String (Low E): Tune up 1 semitone to F2. (Original E2 moves to F2)
• 5th String (A): Keep as is; no change (0 semitones) to A2. (Original A2 remains A2)
• 4th String (D): Tune down 2 semitones to C3. (Original D3 moves to C3)
• 3rd String (G): Keep as is; no change (0 semitones) to G3. (Original G3 remains G3)
• 2nd String (B): Tune up 1 semitone to C4. (Original B3 moves to C4)
• 1st String (High E): Tune down 4 semitones to C4. (Original E4 moves to C4). Note: Tuning down 4 semitones is a significant change. For optimal playability and string tension, consider using a slightly heavier gauge string for the 1st string to maintain proper feel and intonation.