This unique tuning, aptly named "Drop D 7th," is an intriguing modification of the popular Drop D setup, designed for the guitar. Its primary characteristic is the classic Drop D configuration on the lowest three strings, combined with an elevated second string, offering a fresh harmonic landscape for players.

Verbal Analysis

The most immediate impact of this tuning is the powerful D A D foundation on the lower strings, which empowers players with a heavy, resonant bass and simplified one-finger power chords, ideal for rock, metal, and blues. However, the true distinction lies in the second string being tuned up a semitone from B to C. This subtle yet significant change dramatically alters standard chord voicings, requiring players to re-evaluate familiar fingerings for open and barre chords, especially those involving the G, C, and E strings. While it might initially feel unfamiliar, the C note introduces a strong natural minor or dominant seventh flavour when combined with other open strings, potentially simplifying certain jazz or blues progressions, or allowing for unique melodic lines and open, shimmering textures. For instance, the open strings D A D G C E do not form a simple major or minor triad, but they hint at a Dsus2/4 or even a Dm11 voicing. The combination of G, C, and E on the middle strings creates a C major triad, opening possibilities for C-centric voicings and inversions within this tuning. Experimentation will reveal its full potential for rich, complex harmonies, compelling lead lines, and heavy riffing.

Technical Analysis

From a technical standpoint, the "Drop D 7th" tuning establishes a note sequence of D2 A2 D3 G3 C4 E4. Compared to standard E tuning (E2 A2 D3 G3 B3 E4), the low E string is dropped a whole step (2 semitones) to D. The A, D, G, and high E strings remain at their standard pitches. The crucial change occurs on the second string, which is raised a single semitone from B to C. This creates a distinctive interval relationship between the G, C, and E strings, breaking traditional guitar intervals and demanding a new approach to chord theory and fretboard navigation. The open low D A D provides a powerful and resonant foundation, while the C on the second string adds harmonic tension and a unique color to the overall sound of the instrument.

How to Tune

To achieve the Drop D 7th tuning, follow these steps:

• String 6 (Low E): Tune down 2 semitones from E to D. This is a significant drop, so detune carefully.
• String 5 (A): Keep as is; no change (0 semitones).
• String 4 (D): Keep as is; no change (0 semitones).
• String 3 (G): Keep as is; no change (0 semitones).
• String 2 (B): Tune up 1 semitone from B to C. This is a minor adjustment, but always exercise caution when tuning up.
• String 1 (High E): Keep as is; no change (0 semitones).

When tuning strings significantly (generally exceeding 4 semitones up or down), it is often advisable to consider using a different gauge string to avoid excessive tension or slack and ensure optimal playability and string longevity. For this tuning, the adjustments are mostly within safe limits, but always tune slowly and carefully.

String 6: D2

String 5: A2

String 4: D3

String 3: G3

String 2: C4

String 1: E4