Tritones and Major 3rds (The Double Helix)

Here's a simple exercise based on the diatonic symmetry we examined in the previous post. The notation includes fingering in small italics and strings indicated with circled numbers. The diagram shows the symmetrical geometry of the pattern, beginning with C and E at the 5th fret and then moving out from there, first higher, then lower. Click on the image to enlarge.

C and E (red) comprise a major 3rd (two whole-steps). F and B (black) are a tritone (three whole-steps).

You can also see how the positions of middle C and E on the piano align with the same pitches at the center of the system on the fretboard, at the 5th fret.


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