Lesson Seven • Diminished Scale Tetrachords

When last we encountered the Diminished Scale, we isolated four 7th-chord arpeggios that are contained in it. This time out we’ll look at the minor tetrachords (four-note scale fragments) that are also found in the Diminished Scale (the red notes).

G minor tetrachord

Bb minor tetrachord

Db minor tetrachord

E minor tetrachord

These tetrachords can be used to create melodic patterns as shown below:

C13b9 minor tetrachord

They also combine with the dominant arpeggios featured in the last lesson to create even more harmonic implications. But that’s the subject of the next lesson.

This concept is explored in greater detail in my book Jazz Guitar Structures, available from Mel Bay.

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