The biggest mistune in TET is the minor 7th, e.g. C..B-flat. B-flat should yield a division of G..C just as E is the division of C..G. The minor 7th in TET has a frequency ratio of 1.782 yet should be 1.75 compared to tonic following division of the octave. So where we should have a fairly consonant sounding ratio of 7/4 we get obvious dissonance. This is a very flat 7th and hard to do on a guitar since you can only bend upward. But next time you really want to make a minor 7th interval sing, try flattening it noticably. It's beautiful.
The biggest mistune in TET is the minor 7th, e.g. C..B-flat. B-flat should yield a division of G..C just as E is the division of C..G. The minor 7th in TET has a frequency ratio of 1.782 yet should be 1.75 compared to tonic following division of the octave. So where we should have a fairly consonant sounding ratio of 7/4 we get obvious dissonance. This is a very flat 7th and hard to do on a guitar since you can only bend upward. But next time you really want to make a minor 7th interval sing, try flattening it noticably. It's beautiful.
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