Music on the Brain
Highly recommend Daniel J. Levitin’s This Is Your Brain on Music. Picked up copy after attending an Amazon Fishbowl lecture on the book: great talk, entertaining speaker.
Interesting trivia: the Catholic Church at some point banned polyphonic music (two voices somehow challenge the unity of God) and augmented fifths (C to F♯ or a tritone or Diabolus in musica). However, the 6% increase in frequency between each semitone of the Western music system makes any sequence such as C-C♯-B-B♯ represent three sixes of change. Diabolus in musica, indeed.
Music by Bach delightfully polyphonic, so will have to research the bans in more detail. Some searching turns up the motu proprio by Pope Pius X on Sacred Music.