Another Look at Harmony, Part IV

Part IV: I. Opening section - choral plainchant in minims

Part IV: II. Choral plainchant elaborated with quaver movement

Part IV: III. Harmonic and rhythmic exploration leading to

Part IV: IV. Oscillating and repeated chords - then new melodic line added

Part IV: V. Organ interlude on C pedal with gentle cross-rhythms

Part IV: VI. Choral re-entry in repeated sequences with organ obligato

Part IV: VII. Final section - choir and organ with shifting harmonic roots