This is the Bmadd9 Tuning, a distinctive open tuning for the Guitar.

As its name suggests, this tuning immediately presents an open B minor add9 chord when strummed. It's famously utilized by Big Wreck for their song "Mistake," showcasing its unique sonic character and rich harmonic possibilities.

Technical Analysis:

The open strings are tuned to B1 - F3# - C4# - F4# - B3 - D4 (from the lowest to highest string). Let's break down the harmonic structure of this fascinating tuning:

• String 6 (B1): This is the foundational root note of the B minor add9 chord.
• String 5 (F3#): This provides the perfect fifth of B, adding harmonic stability and depth to the open chord.
• String 4 (C4#): This is the crucial added 9th (or major 2nd) of B, giving the chord its characteristic color and sophisticated flavor.
• String 3 (F4#): Another perfect fifth, positioned an octave above String 5's F#, creating a full, resonant sound.
• String 2 (B3): An octave above the lowest string, reinforcing the root and adding brilliance.
• String 1 (D4): The minor third of B, which firmly establishes the minor quality of the chord.

The arrangement of notes (B, D, F#, C#) across the open strings forms a complete B minor add9 chord, making it ideal for drone-based playing or achieving a rich, complex harmony with a single strum. This configuration allows for easy access to the Bmadd9 voicing, while also opening up possibilities for unique fingerings for other chords that build upon this foundation. Common chord shapes will be re-contextualized, encouraging exploration of new voicings and melodic ideas, particularly around the B and F# notes which appear multiple times throughout the tuning.

How to Tune:

To achieve the Bmadd9 Tuning from standard E Standard tuning, follow these precise adjustments for each string:

• String 6 (Low E): Tune down 5 semitones from E to B1. Caution: Tuning down 5 semitones is a significant change. If you plan to keep your guitar in this tuning for extended periods, a different string gauge might be advised to maintain optimal tension and tone.
• String 5 (A): Tune down 3 semitones from A to F3#.
• String 4 (D): Tune down 1 semitone from D to C4#.
• String 3 (G): Tune down 1 semitone from G to F4#.
• String 2 (B): Keep as is; no change (0 semitones).
• String 1 (High E): Tune down 2 semitones from E to D4.