Tonality
In the traditional system of eight modes (in use from the 8th century up to 1547) there are four pairs, each pair comprising an authentic mode and a plagal mode.
Read more about this topic: Gregorian Mode
Tonality
In the traditional system of eight modes (in use from the 8th century up to 1547) there are four pairs, each pair comprising an authentic mode and a plagal mode.
Read more about this topic: Gregorian Mode