The mighty mighty tritone Let’s get this out of the way in the middle ages It was called the devil’s interval which is kind of fun because it sounded dissonant to them So they discouraged it along with a lot of other stuff that turned out to be really awesome It’s called a tritone because it’s made of one two three whole steps put another way That’s six half steps out of a total of twelve. That means it’s halfway. There’s only one other interval That’s the same when you invert it and that’s an octave boring But here’s the thing and you might want to watch this twice C is to C just like C is to C Just like F is to B like B is to F They’re both tritones So what’s the big deal a chord is defined by its third and its seventh play a G underneath this and we have a G7 chord But now consider that the third and the seventh are also the seventh and the third of another chord D flat That’s just the beginning.
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