The CG#C#F# Tuning for 4-string Bass Electric presents a deeply resonant and unconventional soundscape.

While the original description alludes to an alteration of D#/Eb standard where the lowest string is dropped significantly, this tuning ultimately establishes a unique set of open string intervals: C1 - G#2 - C#3 - F#3.

Technical Analysis

• The lowest string is set to C1, providing an incredibly deep and robust foundation. This extends the bass's range far below standard E tuning, offering powerful low-end articulation.
• The second lowest string is tuned to G#2. The interval from C1 to G#2 is a Compound Augmented 5th (or a minor 6th), which creates a wide, somewhat dark, and open tension with the low C.
• The third string is pitched at C#3. This forms a Perfect 4th with the G#2 below, a common and harmonically stable interval found in standard bass tunings. However, in relation to the C1, C#3 forms a very close and dissonant minor 2nd, adding to the tuning's unique, often heavy character.
• Finally, the highest string is tuned to F#3, again a Perfect 4th from the C#3 below. This means the top three strings (G#2, C#3, F#3) are stacked in Perfect 4ths, which provides a familiar framework for scale and arpeggio shapes, making the upper register feel somewhat intuitive despite the lower string's radical change.

The open strings C - G# - C# - F# do not form a traditional chord, indicating that this tuning is likely intended for specific riff creation, droning patterns, or to achieve a distinct, heavy harmonic texture rather than for strumming open chords. Its deep, dissonant, and expansive nature makes it exceptionally well-suited for genres like metal, progressive music, industrial, or experimental soundscapes where a formidable low-end and unconventional harmonies are desired.

How to Tune

To achieve the CG#C#F# Tuning, follow these precise string movements. The instructions describe the shift required to reach the target notes, assuming you're starting from a general prior setup (e.g., standard EADG).

• 4th String (Lowest String): Tune down 1 semitone to reach C1.
• 3rd String: Tune up 2 semitones to reach G#2.
• 2nd String: Tune up 2 semitones to reach C#3.
• 1st String (Highest String): Tune up 2 semitones to reach F#3.

Since all individual string movements are within the range of -4 to +4 semitones, your existing string gauge should generally be sufficient. However, always proceed with caution when tuning, especially when increasing string tension.