While writing my last post, which related a bit to the force of the Feminine in the Tarot, I was reminded of the tritone. The tritone is a musical interval that is a full three tones above the tonic of a scale. It is also referred to as an augmented fourth. In other words, if one were playing a C Major scale, F# would be the tritone. Coincidentally, in the modern practice of equal temperament (Caution: the equal temperament article has lots of math), the tritone is exactly halfway between the tonic and its octave.
I don't want to get into a lot of music theory here, so let me get to the point. The tritone, by some reckoning, is associated with the Feminine principle - and even with "evil." I got this information from the late Kay Gardner, composer, teacher, and music therapist. She talked about it on a series she did for Sounds True.
According to Gardner, she received a failing grade on a composition in college (she went to a Catholic institution) when she used the tritone. Calling it "the Devil's interval," the instructor had her re-write the assignment. Gardner also claims that Plato called the tritone a feminine tone. Other scholarly works cast some doubt on the ancient association of the tritone with the Feminine and the Devil. Nevertheless, since it sounds dissonant to the ear, the tritone was avoided for centuries.
The thing with the tritone (and other dissonant intervals) is that it feels incomplete and needs resolution. Most often, the tritone is used for dramatic effect, to be heightened by its eventual resolution, usually up to the fifth (think G in a C Major scale), or down to the third (think E).
While the tritone is used in offbeat chords, like diminished chords and ninths, it is not used that frequently, even today. However, it can be used to build tension. For instance, one of the most well known uses of the tritone (at least for those of us of a certain age) is the first three notes of the song "Maria" from West Side Story. It starts with a tonic, goes to the tritone, and resolves to the fifth. This song evokes the mystery of the Feminine, its allure and its promise. Well, it did for Tony, anyway.
Now that I've given you a song to have stuck in your head for a few days, I think I'll sign off. Ma-ri-a.
