3: A double history of harmony (Pythagoras and late medieval music c.1150-1250)

Harmony, Harmonia, harmonious, harmonic, harmonica, harmonium, harmonise – what is harmony, and why do we care? Harmony is often mischaracterised as ‘a harmony’ to mean a melody played over the top of a main melody (especially in popular music), but harmony and melody are quite separate things: melody is the lateral relationship between pitches (i.e. […]