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Old 09-06-2006, 07:52 PM
JasonE JasonE is offline
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Join Date: May 2006
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Well, I looked at wikipedia after I started this thread, and looks like they have the answers.

From Wilkipedia:
Standard tuning has evolved to provide a good compromise between simple fingering for many chords and the ability to play common scales with minimal left hand movement.

The separation of the first (e') and second (b) string, as well as the separation between the third (g), fourth (d), fifth (A), and sixth (E) strings by a 5-semitone interval (a perfect fourth) allows notes of the chromatic scale to be played with each of the four fingers of the left hand controlling one of the first four frets (index finger on fret 1, little finger on fret 4, etc.). It also yields a symmetry and intelligibility to fingering patterns.

The separation of the second (b), and third (g) string is by a 4-semitone interval (a major third). Though this breaks the fingering pattern of the chromatic scale and thus the symmetry, it eases the playing of some often-used chords and scale, and it provides more diversity in fingering possibilities.

Then they describe some alternate tunings, including the one I asked about:
All fourths: E-A-d-g-c'-f'
This tuning is like that of the lowest four strings in standard tuning. It removes from standard tuning the irregularity of the interval of a third between the second and third strings. With regular tunings like this, chords can simply be moved down or across the fretboard, dramatically reducing the number of different finger positions that need to be memorized. The disadvantage is that not all major and minor chords can be played with all six strings at once.

JasonE
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