plagal

1.The plagal cadence, sometimes known as the Amen cadence from ecclesiastical use, is the progression from the chord of the subdominant to the tonic, IV - I.

，有时也被称为源于教会的“阿们”，是指从下属音弦到主音弦的进行，IV–I。

2.The word is generally used to indicate the harmonization of the two final notes, classified as authentic or perfect, plagal, half or imperfect, and deceptive or interrupted.

这个词常用于提示最后两个音的谐，分为完全，，半伪。