What Are Ecclesiastical Modes?
Ecclesiastical modes, also named "Greek modes"or "church modes" or "Gregorian modes" formed in the Middle Ages a set of scales whose use has weakened because of the appearance of the major / minor tonal system.
Several centuries later these modes have reappeared. They are very used in jazz improvisation as scale of chords and modal playing.
This lesson explains how are built modes and how to play them on guitar.