This unique and experimental tuning is famously employed by the band Animal Collective on their album "Feels". It departs significantly from standard guitar tuning, creating an ethereal, often dissonant, and richly textured soundscape characteristic of their psychedelic and experimental rock style.

Technical Analysis:

Based on the tuning instructions provided, the open string tuning from low to high will be E2 G#2 C3 E3 B3 E4. Let's break down the intervals and potential harmonic implications:

• The lowest two strings (E2 and G#2) form a Major Third interval, creating an immediate sense of brightness.
• The third string (C3) introduces a distinct and slightly unexpected color. When played with the lowest E2, it forms a minor sixth. With the G#2, it forms a minor third.
• The fourth string (E3) is an octave above the lowest E, providing a solid and resonant foundation.
• The fifth string (B3) creates a perfect fifth with the E3, strengthening an E major or E power chord feel in the upper register.
• The highest string (E4) completes the octave of the lowest E, adding brightness and sustain.

The overall set of open string notes are E, G#, C, and B. This collection doesn't immediately form a simple major or minor triad, which is typical for experimental tunings. It can be interpreted as an E Major chord (E, G#, B) with an added minor sixth (C). Alternatively, the notes C-E-G# form a C Augmented triad, which, with an E bass, suggests a strong, slightly dissonant or resolving quality depending on the musical context. The upper three strings (E3, B3, E4) form a clear E Power Chord (E5), providing a stable, resonant base.

The non-standard intervals between adjacent strings (Major 3rd, Minor 3rd, Major 3rd, Perfect 5th, Perfect 4th from low to high) significantly alter familiar chord shapes. This encourages exploration of unique voicings, arpeggios, and drones. This tuning is particularly well-suited for creating shimmering textures, open, ringing sounds, and allows for experimental soundscapes and non-traditional harmonic approaches.

How to Tune:

To achieve the Animal Collective "Feels" tuning, start from standard EADGBe tuning and make the following adjustments. Please note that negative semitone values indicate tuning down, and positive values indicate tuning up. Exercise caution with significant string tension changes; for movements exceeding 4 semitones up or down, a different string gauge may be advisable to prevent string breakage or poor intonation.

• String 6 (Low E): Keep as is; no change from E2 (0 semitones). Resulting note: E2.
• String 5 (A): Tune down 1 semitone from A2. Resulting note: G#2.
• String 4 (D): Tune down 3 semitones from D3. Resulting note: C3.
• String 3 (G): Tune down 3 semitones from G3. Resulting note: E3.
• String 2 (B): Keep as is; no change from B3 (0 semitones). Resulting note: B3.
• String 1 (High E): Keep as is; no change from E4 (0 semitones). Resulting note: E4.

The final open string tuning from low to high will be E2 G#2 C3 E3 B3 E4.