design-chord-progression
Design Chord Progression
Compose chord progressions that establish tonality, create harmonic movement, and support melodic and emotional expression.
Why This Is Best Practice
Adopted by: Berklee College of Music (world's largest music school) uses functional harmony and Piston's framework as the core of its harmony curriculum; Everett's rock harmony analysis is the academic standard for popular music theory; all major songwriting curricula (BMI, ASCAP workshops) teach functional chord movement. Impact: Understanding functional harmony enables composers to intentionally create tension/release cycles that drive listener engagement; analysis of Billboard #1 hits shows 90%+ use I–IV–V–I or closely related functional progressions as their backbone. Why best: Chord progressions are the harmonic language that communicates emotional direction — functional harmony creates the expectation and resolution cycle that engages listeners emotionally and cognitively.
Sources: Piston "Harmony" rev. ed. (1978); Berklee Online "Harmony 1–4" curriculum; Everett "The Foundations of Rock: From 'Blue Suede Shoes' to 'Suite: Judy Blue Eyes'" (2009).
Steps
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Establish the key and mode — choose a tonal center (key) and mode: major (bright, stable), natural minor (dark, melancholic), Dorian (minor with raised 6th — jazz/folk feel), Mixolydian (major with flatted 7th — rock feel), or other modes. Every chord choice is evaluated relative to this tonal center.
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Map the diatonic chords — build the seven diatonic triads (or seventh chords) native to the chosen key. For C major: I(C), ii(Dm), iii(Em), IV(F), V(G), vi(Am), vii°(Bdim). These are your primary harmonic vocabulary in the key.
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Understand chord function — assign each diatonic chord a function: Tonic (I, iii, vi — stable, home feeling), Subdominant/Pre-dominant (ii, IV — departure, motion building), Dominant (V, vii° — tension, strongest pull to tonic). A complete progression moves: T → PD → D → T.