DGDF#AC Guitar Tuner

DGDF#AC | DGDG♭AC CHFOD (Changed) (Version 2) - Guitar tuning, chords & scales

Description - CHFOD (Changed) (Version 2)

This the changed version.

Welcome to the tuning analysis for CHFOD (Changed) (Version 2), a unique setup for the Guitar. As described in the tuning's description, this is "This the changed version." offering a distinct sonic palette beyond standard tunings.

Technical Analysis

This tuning presents the open strings as D2 G2 D3 F#4 A3 C4, from the 6th (lowest) to the 1st (highest) string. The presence of D on the 6th and 4th strings establishes a strong D root, with G on the 5th string, hinting at a Dsus4 or G major tonality. The full open chord consists of the notes D, G, F#, A, and C. This combination forms a complex sonority that can be interpreted as a D7sus4(addG) or a Gmaj7sus2/D chord.

One of the most striking features of this tuning is its highly unusual interval structure, particularly among the higher strings:

6th string (D2) to 5th string (G2): A Perfect 4th.
5th string (G2) to 4th string (D3): A Perfect 5th.
4th string (D3) to 3rd string (F#4): A Major 10th (a Major 3rd plus an octave). This is a very significant pitch jump, placing the 3rd string exceptionally high relative to the strings below it.
3rd string (F#4) to 2nd string (A3): A Minor 6th down. This is highly unconventional, as the 2nd string is pitched lower than the 3rd string.
2nd string (A3) to 1st string (C4): A Minor 3rd.

The non-monotonic pitch progression (D3 ↑ F#4 ↓ A3 ↑ C4) creates a distinct and potentially dissonant open strum, differing greatly from standard guitar voicings. This arrangement suggests that the tuning might be designed for specific melodic passages, arpeggios, or drone effects rather than traditional open chord strumming, offering a unique texture for advanced players seeking experimental sounds. Common chord shapes will need significant adaptation, but specific open voicings and drones could be explored. For example, a D major triad (D-F#-A) could be formed across the 6th, 4th, and 2nd strings if the F# on the 3rd string is ignored or muted. Similarly, a G major triad (G-B-D) could be found.

How to Tune

To achieve the CHFOD (Changed) (Version 2) tuning from standard E-Standard (E-A-D-G-B-E), follow these specific adjustments for each string:

6th String (Low E): Tune down 2 semitones from E2 to D2.
5th String (A): Tune down 2 semitones from A2 to G2.
4th String (D): Keep as is; no change (0 semitones) at D3.
3rd String (G): Tune down 1 semitone from G3 to F#3. (Note: The provided tuning notes specify the 3rd string as F4#, which is an octave higher than F#3 and an extremely high pitch for a standard guitar string. Achieving F4# from a standard G3 string would require tuning up 11 semitones, not down 1. If F4# is genuinely intended, it would likely require a much lighter gauge string and extreme caution, as it contradicts the 'down 1 semitone' instruction from standard G3, which would result in F#3.)
2nd String (B): Tune down 2 semitones from B3 to A3.
1st String (High E): Tune down 4 semitones from E4 to C4. (Note: Tuning this string down 4 semitones is a significant drop. For frequent use, a slightly heavier gauge string might be beneficial to maintain proper tension and tone.)

General Tuning Caution: Tuning a string up or down by 4 semitones or more can place unusual stress on the string and potentially the guitar neck. For movements exceeding -4 or +4 semitones, it is generally recommended to use a different gauge string to prevent breakage or damage. The 1st string in this tuning is at the threshold of this recommendation, and the 3rd string's stated target note (F4#) is a significant outlier that should be approached with extreme caution, verifying the intended pitch before tuning.

6th String: D2

5th String: G2

4th String: D3

3rd String: F4#

2nd String: A3

1st String: C4