"M's Weird" is an unconventional and highly creative tuning, specifically designed by its creator for generating "dissonant and harmonious math rock." This description immediately signals an experimental and challenging approach to guitar playing, moving away from standard melodic or harmonic structures towards angular, percussive, and rhythmically complex sonic landscapes.

Technical Analysis:

The open notes of this tuning are C#3, G2, D#4, F#4, B3, D4 (from low to high string). This array of notes presents a unique harmonic palette:

• The lowest two strings (C#3 and G2) form a prominent tritone interval, which is inherently dissonant and often used to create tension and drive in music.
• Moving up, the interval from G2 to D#4 is a compound augmented 4th (tritone plus two octaves), further emphasizing the unstable, expansive nature of the tuning.
• Between the middle strings, we find closer intervals: D#4 to F#4 is a minor third, and B3 to D4 is also a minor third. This creates opportunities for tight, clustered voicings.
• The F#4 to B3 interval (string 3 to string 2) is a perfect fifth descending, offering a strong, stable contrast to the tritones.

The overall intervallic structure avoids common intervals like perfect fifths and fourths on adjacent strings, making traditional chord shapes largely impractical. Instead, players will likely find themselves exploring new fingerings and shapes to articulate chords. The open strings themselves (C# G D# F# B D) do not form a conventional chord, contributing to its dissonant character. However, within these notes, one could extract elements that suggest different tonal centers: B, D, F# form a B minor triad (utilizing strings 2, 1, and 3 respectively, though F# is an octave higher), indicating a potential harmonic anchor. The presence of multiple minor thirds and tritones suggests an affinity for angular, tension-filled voicings and the characteristic "dissonance" often associated with math rock, while the creator's mention of "harmonious" implies that carefully constructed voicings within this unique framework can indeed resolve or create unexpected, pleasing sonic textures.

The notes for "M's Weird" tuning are as follows (from thickest/lowest string to thinnest/highest string):

String 6: C#3 (This is the C# below middle C, 3 semitones lower than a standard Low E string).

String 5: G2 (This is a G two octaves below middle C, 2 semitones lower than a standard A string).

String 4: D#4 (This is a D# an octave above middle C, 1 semitone higher than a standard D string).

String 3: F#4 (This is an F# an octave above middle C, 1 semitone lower than a standard G string).

String 2: B3 (This is a B an octave below middle C, the same note as a standard B string).

String 1: D4 (This is a D an octave above middle C, 2 semitones lower than a standard High E string).

How to Tune:

To achieve "M's Weird" tuning from standard E Standard tuning (EADGBe), follow these steps:

• String 6 (C#3): Tune down 3 semitones.

  Caution: Tuning down 3 semitones is a notable change from standard E. This will significantly reduce string tension. Consider adjusting string gauge or instrument setup (e.g., truss rod adjustment) for optimal playability and intonation if this tuning is used frequently.

• String 5 (G2): Tune down 2 semitones.

  Caution: Tuning down 2 semitones is a notable change from standard A. This will reduce string tension. Consider adjusting string gauge or instrument setup for optimal playability and intonation if this tuning is used frequently.

• String 4 (D#4): Tune up 1 semitone.

  Caution: Tuning up 1 semitone is generally safe. Always tune slowly and carefully to avoid putting excessive stress on the string, especially if it's an older string.

• String 3 (F#4): Tune down 1 semitone.

  Caution: Tuning down 1 semitone is generally safe and causes minimal change in string tension.

• String 2 (B3): Keep as is; no change (0 semitones).

  No change to string tension is required for this string.

• String 1 (D4): Tune down 2 semitones.

  Caution: Tuning down 2 semitones is a notable change from standard E. This will reduce string tension. Consider adjusting string gauge or instrument setup for optimal playability and intonation if this tuning is used frequently.

General Gauge Advice: While none of the individual string movements in this tuning exceed the threshold of -4 or +4 semitones where a different gauge string is strongly advised, several strings are significantly downtuned. The cumulative effect of multiple downtuned strings will result in a much looser feel across the fretboard. Players seeking a tighter string tension or more consistent intonation might consider using a heavier gauge string set overall for this tuning.