Tuning Name: Earthquake Bass Tuning

Prepare for seismic sonic shifts with the Earthquake Bass Tuning! This extremely low and resonant setup for a 7-string Bass Electric is designed to deliver monumental depth and guttural power. The name 'Earthquake' perfectly encapsulates the immense, rumbling frequencies this tuning unlocks, ideal for genres demanding an unprecedented level of low-end impact, such as extreme metal, drone, or experimental soundscapes where a standard bass simply won't suffice. It's not just a tuning; it's a foundation-shaking experience.

Technical Analysis:

This is an ultra-low tuning for a 7-string Bass Electric, technically referred to as 'C#0 standard 7 string bass'. The open strings are set as follows, from the lowest (7th) to the highest (1st) string:

• 7th String: C#1
• 6th String: F#1
• 5th String: B0
• 4th String: E1
• 3rd String: A1
• 2nd String: D2
• 1st String: G2

This tuning presents a unique and largely non-standard intervallic structure. While the upper five strings (B0-E1-A1-D2-G2) maintain the familiar perfect fourths common in bass tunings, and the lowest two strings (C#1-F#1) also form a perfect fourth, the transition from the 6th string (F#1) to the 5th string (B0) is highly unconventional. The B0 is a major sixth lower than F#1, creating a significant drop in pitch between these two adjacent strings. This unique interval allows for extremely deep, resonant single notes or power chords rooted in B0, adding to its 'Earthquake' sonic signature.

Given the ultra-low register and the non-standard intervallic jump, traditional open chords are not the primary focus. Instead, this tuning excels at delivering massive power chords, guttural single-note lines with immense depth, and drone-like textures. The ability to create a deep C#1 or B0 rumble instantly sets the stage for a heavy, subterranean sonic landscape.

How to Tune:

Achieving the Earthquake Bass Tuning requires a substantial down-tuning for all strings. Due to the extreme nature of a 12-semitone drop for every string, it is highly recommended to use significantly heavier gauge strings than standard to maintain proper tension, intonation, and playability. Standard strings will likely be too loose and floppy, leading to poor tone and playability.

• String 7 (Lowest String): Tune down 12 semitones to reach C#1. This is a full octave below its presumed standard pitch.
• String 6: Tune down 12 semitones to reach F#1. This is a full octave below its presumed standard pitch.
• String 5: Tune down 12 semitones to reach B0. This is a full octave below its presumed standard pitch.
• String 4: Tune down 12 semitones to reach E1. This is a full octave below its presumed standard pitch.
• String 3: Tune down 12 semitones to reach A1. This is a full octave below its presumed standard pitch.
• String 2: Tune down 12 semitones to reach D2. This is a full octave below its presumed standard pitch.
• String 1 (Highest String): Tune down 12 semitones to reach G2. This is a full octave below its presumed standard pitch.

Always proceed with caution when making such drastic tuning changes and regularly check neck relief and intonation once tuned.

The open notes for the Earthquake Bass Tuning are as follows:

• String 7: C#1
• String 6: F#1
• String 5: B0
• String 4: E1
• String 3: A1
• String 2: D2
• String 1: G2