The relationship between Tritone in western music scale and the energy movement of Aries and Libra Ascendants.
In music theory, the tritone is defined as a musical interval composed of three adjacent whole tones (six semitones). For instance, the interval from F up to the B above it (in short, F–B) is a tritone as it can be decomposed into the three adjacent whole tones F–G, G–A, and A–B. According to this definition, within a diatonic scale there is only one tritone for each octave.
In twelve-equal temperament, the tritone divides the octave exactly in half as 6 of 12 semitones or 600 of 1200 cents. In classical music, the tritone is a harmonic and melodic dissonance and is important in the study of musical harmony.
A tritone is a very specific interval – it is the interval made from six semitones, or three whole tones. To symbolize it for Aries and Libra, the 7th house for Aries is Libra which is at 180 degrees and the 1st house for Libra is at Aries at 360 degrees. If you symbolize Semi tones as houses, Tritone (Aries)/Inverse Tritone (Libra) moves 6 semitones which is equal to 6 houses. If we symbolize it as a circle with 12 pie, they move through 6 slices of pie.
1/7 , 2/8. 3/9, 4/10, 5/11, 6/12, for Aries Ascendant.
1/7 2/8 3/9 4/10 5/11 6/12 for Libra Ascendant seen from the 7th house which makes it retro Opposition as Aries will be in Libra and Viceversa.
To get back to Aries and Libra, the sudden burst of energy that Aries natives have or their explosive temper and quickly calming down. Their passion to win could be symbolized as the resolution in Tritone. Not finding a resolution and being okay with it is definitely Libra territory. The need to find a resolution to situations by Libra natives can be symbolized as the Tritone resolution. In 6/72 SA, Libra symbolizes sudden Death or struggle at the start of the second half of life. It could also be symbolized as the ending of the first half of life for Aries natives and beginning of the 1st half of life for Libra natives.
The next similarity that I find interesting is the sound. In Tritone, a system of tension and release, but sometimes the resolution never comes. Even in sound symbolism, the Tritone has a noticeable high and suspenseful sound. There is a sudden rise and drop of energy or drop and rise of energy. The devil in music, it was banned in the medieval times, not banned, but it was by the priesthood, that it will conjure up the devil. During the Middle Ages, this interval was considered particularly difficult to sing and was called diabolus in musica (“devil in music”). Until the 18th century, its use in melody was either avoided or carefully limited by rules of counterpoint.
Below are links for some popular videos showing Tritone in music.