Verbal Analysis:

The "All B Unison Tuning" is a truly distinctive and incredibly low 5-string guitar setup, with every open string tuned to a B note, spanning an impressive five octaves from the sub-bass B0 to the higher B4. This creates an immensely thick, resonant, and drone-like sound, making it ideal for genres that benefit from a deep, sustained sonic foundation such as Doom Metal, Drone, Ambient, or experimental music. Playing open strings will produce a massive B chord (either major or minor, depending on context, as only root notes are present), offering a powerful, monolithic sound.

While traditional chord voicings might be challenging due to the unison nature of the open strings, this tuning excels in creating crushing power chords and wide-interval arpeggios that emphasize the immense depth. Octaves are easily accessible across adjacent strings, allowing for very wide and impactful melodic lines. The sheer depth of the B0 string requires significant amplification and speaker capability to truly be felt, not just heard. Players should be prepared for a very different feel under the fingers, where precise intonation and string clarity at such low frequencies become paramount.

Technical Analysis:

• Open String Notes: B0, B1, B2, B3, B4 (from lowest to highest string).
• Intervals: All adjacent strings are tuned exactly one octave apart, creating a pure unison (octave) stack.
• Range: This tuning spans four full octaves from the lowest B0 to the highest B4.
• Chordal Properties: The open strings form a resonant B "power chord" or root chord across the entire range of the instrument. This makes fingerings for basic major/minor chords less intuitive in open position but facilitates very wide, heavy, and resonant harmonic textures.
• String Tension & Gauge: Given the extreme drops in pitch for the lower strings (up to 12 semitones down) and a significant rise for the highest string (7 semitones up), specialized, heavy gauge strings are absolutely essential for the lower strings to maintain tension and intonation, while the highest string will likely require a lighter gauge than standard to avoid breakage.

Open String Notes:

5th String (Lowest): B0
4th String: B1
3rd String: B2
2nd String: B3
1st String (Highest): B4

How to Tune:

• 5th String (Lowest) to B0: Tune down 12 semitones. This is a significant drop of a full octave. Using a much heavier gauge string is strongly advised to maintain proper tension and intonation.
• 4th String to B1: Tune down 10 semitones. This is a substantial drop. A different, heavier gauge string is strongly advised.
• 3rd String to B2: Tune down 8 semitones. This is also a considerable drop. A heavier gauge string is strongly advised.
• 2nd String to B3: Keep as is; no change (0 semitones). No adjustment required for this string.
• 1st String (Highest) to B4: Tune up 7 semitones. This is a substantial increase in pitch and tension. A lighter gauge string than standard is advised, and extreme caution must be exercised during tuning to prevent string breakage or damage to your instrument.