tetrachord

Comparing modes in terms of tetrachords

Find previous blog posts covering tetrachords in part 1part 2 and part 3 of this tutorial.

 

Modes and tetrachords | Root note C

Comparing modes in terms of tetrachords

 

Comparing modes in terms of tetrachords helps you to get familiar with

  • the structure of scales
  • the fingerings of scale patterns
  • the sound of modes
  • the brightness and darkness of modes

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C major scale | Modes in terms of tetrachords

Find previous blog posts covering tetrachords in part 1 and part 2 of this tutorial.  

 

C Ionian Scale

The C Ionian Scale is a combination of the Cmaj tetrachord and the Gmaj tetrachord separated by a major second (2).

C ionian scale in terms of tetrachords

 

G Mixolydian Scale

The G Mixolydian Scale is a combination of the Gmaj tetrachord and the Dmin tetrachord separated by a major second (2). The upper Gmaj tetrachord of the C ionian scale becomes the lower tetrachord of the G mixolydian scale.

G mixolydian scale in terms of tetrachords

 

D Dorian Scale

The D Dorian Scale is a combination of the Dmin tetrachord and the Amin tetrachord separated by a major second (2). The upper Dmin tetrachord of the G mixolydian scale becomes the lower tetrachord of the D dorian scale.

D dorian scale in terms of tetrachords

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Modes in terms of tetrachords

Tetrachords | Major | Minor | Phrygian | Whole-Tone

See part 1 of this tutorial here.

 

Major Tetrachord

major tetrachord is a series of four notes with the interval pattern tone – tone – semitone (2-2-b2).

modes major tetrachord

 

Minor Tetrachord

minor tetrachord is a series of four notes with the interval pattern tone – semitone – tone (2-b2-2).

modes minor tetrachord

 

Phrygian Tetrachord

phrygian tetrachord is a series of four notes with the interval pattern semitone – tone – tone (b2-2-2).

modes phrygian tetrachord

 

Whole-Tone Tetrachord

whole-tone tetrachord is a series of four notes with the interval pattern tone – tone – tone (2-2-2).

modes whole-tone tetrachord

 

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Tetrachords | Circle of Fifths | Part 1

Major Tetrachords · Major Scales

 

A major tetrachord is a series of four notes with the interval pattern tone – tone – semitone (2-2-b2).

major-tetrachords

 

A major scale is a combination of two major tetrachords separated by a major second (2).

major-scale

 

Cmaj Scale

major-scale-two-major-tetrachords

The Cmaj scale is a combination of the Cmaj tetrachord and the Gmaj tetrachord separated by a whole-tone.

 

Gmaj Scale

The upper tetrachord G A B C of the Cmaj scale becomes the lower tetrachord of the Gmaj scale.

major-scale-two-major-tetrachords-gmaj-scale

The Gmaj scale is a combination of the Gmaj tetrachord and the Dmaj tetrachord separated by a whole-tone.

 

Dmaj Scale

The upper tetrachord D E F# G of the Gmaj scale becomes the lower tetrachord of the Dmaj scale.

D-major-scale-two-major-tetrachords

 

The Dmaj scale is a combination of the Dmaj tetrachord and the Amaj tetrachord separated by a whole-tone.

 

And so on…continuing this series of tetrachords will result in the circle of fifths.

 

Series of Major Tetrachords → Circle of Fifths

 

major-tetrachords-circle-of-fifths

 

See part 2 of this tutorial here