plagal mode

11 LETTERS · STARTS WITH P

plagal mode is a valid 11-letter word worth 16 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3L1A1G2A1L1M3O1D2E1

3 + 1 + 1 + 2 + 1 + 1 + 0 + 3 + 1 + 2 + 1 =16 PTS

DOUBLE WORD → 32TRIPLE WORD → 48

MEANING

What does plagal mode mean?