
1) Music with a medieval tone 2) Of a medieval music mode
Found on
https://www.crosswordclues.com/clue/plagal

• (a.) Having a scale running from the dominant to its octave; -- said of certain old church modes or tunes, as opposed to those called authentic, which ran from the tonic to its octave.
Found on
http://thinkexist.com/dictionary/meaning/plagal/
Pla'gal adjective [ French, from Greek ... sidewise, slanting.]
(Mus.) Having a scale running from the dominant to its octave; -- said of certain old church modes or tunes, as opposed to those called
authentic , which ran from the tonic to its octave.
Plagal cadence ,
a cadence...
Found on http://www.encyclo.co.uk/webster/P/98
In music, plagal describes a piece as having a scale running from the dominant to its octave. It is said of certain old church modes or tunes, as opposed to those called authentic, which ran from the tonic to its octave.
Found on http://www.probertencyclopaedia.com/browse/VP.HTM
No exact match found.