Bolded for emphasis. Extrapolate what you will from this.
"Levels of dissonance in music had been steadily rising since the last years of the nineteenth century, when Liszt wrote his keyless bagatelle and Satie wrote down the the six-note Rosicrucian chords of Le Fils des etoiles. Strauss, of course, indulged discord in Salome. Max Reger, a composer versed in the contrapuntal science of Bach, caused Schoenberg-like scandals in 1904 with music that meandered close to atonal. In Russia, the composer-pianist Alexander Scriabin, who was under the influence of Theosophist spiritualism, devised a harmonic language that vibrated around a “mystic chord” of six notes; his unfinished magnum opus Mysterium, slated for a premire at the foot of the Himalayas, was to have brought about nothing less than the annihilation of the universe, whence men and women would emerge as astral souls, relieved of sexual difference and other bodily limitations."
- Alex Ross, The Rest Is Noise, p.63.