Proper compositions use the perfect 5th as the soul source of harmony, as in 10th century Gregorian chant and liturgical music (the peak of human creativity, pu

Proper compositions use the perfect 5th as the soul source of harmony, as in 10th century Gregorian chant and liturgical music (the peak of human creativity, put to its proper purpose.) Any other dissonant intervals (major 3rds, etc.) are the work of the devil. 1950s era DCI, JP Sousa, brass band works by Elgar and Vaughn Williams, it’s all a discordant mess, created to titillate an unruly (and ungodly) audience.