“To Infinity And Beyond”. . .: Guitar Fretboard Logic Part VI

March 24, 2015

RoyMusicUSA

In my previous post, I began to talk about chords with extended harmony. Extended harmony could be defined as intervals greater than an octave. Last post we talked about ninth chords. With this post we will discuss eleventh and thirteenth chords.

As we did with ninth chords, lets extend the major scale into the next octave:
Scale Step      :  1  2  3  4  5   6   7   8  9 10 11 12 13 14 15
C major scale :  C D  E  F  G  A   B  C  D  E  F  G   A   B   C

The interval of the eleventh is enharmonically the same as a fourth but when considering the eleventh interval played with a chord based on the major triad, we encounter a little problem. The eleventh (or fourth) “rubs” against the major third of the triad. It’s akin to playing a major triad and a suspended triad at the same…

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