More on the tritone

So, following on from the last post, if you string together the tritone across the fretboard you get the following pattern:



And the other cool thing is that it occurs twice in any given 12 fret span:



You may also note that this contains the octave patterns that I posted on previously. But the absolute best thing about this pattern is that it directly relates to a number of chords and modes:

• the major third and flattened seventh tones in a Dominant 7 chord, which also directly relates to the Mixolydian mode (the chord is built from the root of the mode and is unique to the mode)
• the root and sharpened fourth tones in a Major (#11) chord and any related chord variations—directly relates to the Lydian mode (chord is built from the root of the mode and is unique to the mode)
• the root and flattened fifth tones in a Diminished chord where the related mode is Locrian (same same)

There are other relationships, as this pattern must occur in all modes, although some of the related chords are quite dissonant or uncommon. Still, I'll map these out in a future posting once I get my head around this.