Option A four-part vocal harmony: cadences, six-four progressions and the dominant 7th

What this note covers

1. What Option A asks for and how it is judged
2. SATB layout: ranges, spacing, doubling and order
3. Choosing chords: cadences first, then the bass line
4. Part-writing rules that matter most
5. Six-four chords: cadential and passing, on the right beats
6. The dominant 7th: inversions and resolutions
7. Unessential notes, a complete worked example and a final checklist

7 sections · 11 key terms & formulas · 6 common mistakes