Plagal
Plagal (plā"gal) , adjective
[French, from Greek pla`gios sidewise, slanting.]
(Music) 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.
Collocations (1)
Plagal cadence , a cadence in which the final chord on the tonic is preceded by the chord on the subdominant.