This effect is known as a Tierce de Picardie. The video shows examples of different types of cadence. Two common modes are the Dorian mode and the Mixolydian mode. Modes are often found in folk ...

with choral examples such as Gaudete. We see how John Dunstaple was a key figure in the shift to more varied harmonies, introducing major and minor thirds, triads and cadences. Includes extracts ...