Music: a Mathematical Offering (free PDF) http://homepages.abdn.ac.uk/mth192/pages/html/maths-music.html http://homepages.abdn.ac.uk/mth192/pages/html/maths-mus

Music: a Mathematical Offering (free PDF) http://homepages.abdn.ac.uk/mth192/pages/html/maths-music.html http://homepages.abdn.ac.uk/mth192/pages/html/maths-music.ht... You can skip to chapter "History of consonance and dissonance" and go from there.