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Repetitive tuning

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Major-thirds tuning repeats itself (at a higher octave) after three strings. Thus, chords can be shifted vertically on the same frets.

Repetitive tunings are alternative tunings for the guitar. A repetitive tuning begins with a list of notes that is duplicated, either at unison or at higher octaves.

Among regular tunings, there are three repetitive tunings: minor-thirds tuning, major-thirds tuning, and augmented-fourths tuning. Among open tunings, there are repetitive versions of open C tuning and open G tuning, which have been associated with the English and Russian guitars, respectively.

Repetition eases the learning of fretboard and chords and eases improvisation. For example, in major-thirds tuning, chords are raised an octave by shifting fingers by three strings on the same frets.[1]

Repetitive tunings are listed after their period, the number of strings after which they repeat.

One

Every augmented-fourths (tritone) tunings repeats its two notes three times.

The trivial tuning repeats the same note every string. It is also called a unison regular tuning.

C-C-C-C-C-C.[2]

Other trivial-tunings repeat their single notes on a higher octave (or on higher octaves), for example,

C-C-c-c-c'-c'.

Two

The following tunings repeat their notes on a higher octave after two strings:

There are other tunings for the cittern.[4]

Three

For the Russian guitar, the open strings form a G-major chord, which is twice repeated
Every major-thirds tuning repeats its three notes twice.
The C major chord and its first and second inversions. In the first inversion, the C note has been raised 3 strings on the same fret. In the second inversion, both the C note and the E note have been raised 3 strings on the same fret.
Chords are inverted by shifting notes by three strings on the same fret in major-thirds tuning.[5]

The following tunings repeat their notes after three strings:

D♯-G-B-D♯-G-B-D♯,[6]

Chord inversion is especially simple in major-thirds tuning. Chords are inverted simply by raising one or two notes three strings. The raised notes are played with the same finger as the original notes.[5][1]

Four

Minor-thirds tunings repeat its four notes after four strings (twice on an eight-string guitar).

In each minor-thirds tuning, every interval between successive strings is a minor third. It repeats its open-notes after four strings. In the minor-thirds tuning beginning with C,

C-D♯-F♯-a-c-d♯

the open strings contain the notes (c, d♯, f♯) of the diminished C chord.[9]

See also

Notes

  1. ^ a b Griewank (2010, p. 10)
  2. ^ Sethares (2001, pp. 53 and 60):

    Sethares, Bill (2001). "Regular tunings". Alternate tuning guide (pdf). Madison, Wisconsin: University of Wisconsin; Department of Electrical Engineering. pp. 52–67. Retrieved 9 September 2012. {{cite book}}: Invalid |ref=harv (help)

  3. ^ Sethares (2001, "Instrumental tunings: Cittern tuning two, p. 42)
  4. ^ Sethares (2001, pp. 34 and 41-42)

    Sethares, Bill (2010). "Instrumental tunings". Alternate tuning guide (pdf). Madison, Wisconsin: University of Wisconsin; Department of Electrical Engineering. pp. 34–51. Retrieved 12 September 2012. {{cite book}}: Invalid |ref=harv (help)

  5. ^ a b Kirkeby (2012, "Fretmaps, major chords: Major Triads"): Kirkeby, Ole (2012). "Welcome to M3 Guitar Version 3.0!". m3guitar.com. cited by Sethares (2011) and Griewank (2010, p. 1). Retrieved 10 June 2012. {{cite web}}: Cite has empty unknown parameter: |1= (help); Invalid |ref=harv (help); Unknown parameter |month= ignored (help)
  6. ^ Sethares (2001, "The major third tuning", pp. 56–57)
  7. ^
  8. ^ Sethares (2001o, The open C tuning, p. 18):

    Sethares, Bill (2001o). "Open tunings". Alternate tuning guide (pdf). Madison, Wisconsin: University of Wisconsin; Department of Electrical Engineering. pp. 16–33. Retrieved 9 September 2012. {{cite book}}: Invalid |ref=harv (help)

  9. ^ Sethares (2011)

References

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