Diatonic Harmony
Diatonic harmony is based on a seven-note pitch collection centred on a tonic, encompassing both major and minor keys. It establishes a coherent tonal framework through harmonic relationships that create stability, contrast, and directional motion.
Diatonic Harmony (Major)
I–IV (Major)
Oscillatory Continuation
Fig 4.1 “Main Theme” – Star Wars Episode IV: A New Hope (John Williams, 1977)