Verbal and Technical Analysis

The "Open Dmaj7" tuning, as its name suggests, is an inventive exploration within the realm of D tunings. The creator notes its ability to deliver a unique sound, particularly "12 string like melodies with the B and E strings." This tuning indeed achieves a rich, resonant quality, providing a full D Major 7th chord when played open.

Technically, the open strings are tuned to D2 A2 D3 F4# C5# C5#. This arrangement immediately presents a D Major 7th chord (D - Root, A - Perfect 5th, D - Octave, F# - Major 3rd, C# - Major 7th, C# - Doubled Major 7th). The repetition of the C# on the highest two strings is key to the described "12-string like melodies," creating a shimmering, almost chorused effect that adds depth and sustain.

The foundation of D-A-D on the lower three strings provides a strong, open power chord, making it ideal for drone-based music, slide guitar, or fingerstyle where a rich bass is desired. Given that the open strings form a Dmaj7, barring all strings at a specific fret can instantly yield other Major 7th chords. For example, a full bar at the 2nd fret would produce an Emaj7, and at the 5th fret, a Gmaj7. This makes exploring harmonic progressions surprisingly intuitive and accessible, opening up new melodic and chordal possibilities with relatively simple finger positions.

How to Tune

To achieve the "Open Dmaj7" tuning from standard E Standard tuning (E-A-D-G-B-E), follow these string adjustments:

• Low E String (6th String): Tune down 2 semitones to D2.
• A String (5th String): Keep as is; no change (0 semitones) to A2.
• D String (4th String): Keep as is; no change (0 semitones) to D3.
• G String (3rd String): Tune down 1 semitone to F4#.
• B String (2nd String): Tune up 2 semitones to C5#.
• High E String (1st String): Tune down 3 semitones to C5#.

Important Note: When tuning strings, especially when moving more than 4 semitones up or down, it is generally advisable to consider using a different gauge string to avoid potential damage to the string or the instrument, and to ensure optimal tension and playability. For this specific tuning, the maximum movement is 3 semitones down and 2 semitones up, which is generally within safe limits for standard string gauges, but always exercise caution and listen to your instrument.

String 6: D2
String 5: A2
String 4: D3
String 3: F4#
String 2: C5#
String 1: C5#