The Devil in music (an untold history of the Tritone)

We know the interval of a tritone today as "diabolus in musica," or the devil in music, but was it really always associated with evil? Are all of those metal musicians right in thinking that this interval is the sound of evil incarnate? Some of the cool things referenced in this video Liszt - Dante Sonata    • Liszt: Dante Sonata / Fantasia Quasi Sonat...   A great history of the concepts of "soft" and "hard" in the Renaissance (tangentially related to hexachords)    • Durum and Molle / Hard and soft in the mus...   That Pérotin piece with the tritones -    • 05 Dum sigillum summi Patris - Pérotin   AMAZING resource on tritones in medieval music. Seriously, the entire genesis of this video came from reading this short little essay. http://www.medieval.org/emfaq/harmony... SUPPORT ME ON PATREON   / adamneely   FOLLOW ME ON THE INTERNETS   / adamneely     / its_adamneely   Check out some of my music http://sungazermusic.bandcamp.com http://insideoutsidemusic.bandcamp.com http://adamneelymusic.bandcamp.com Peace, Adam