Plagal

Definitions

  • Webster's Revised Unabridged Dictionary
    • a Plagal (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.
    • ***
Century Dictionary and Cyclopedia
    • plagal In Gregorian music, noting a mode or melody in which the final is in the middle of the compass instead of at the bottom: opposed to authentic. See mode
    • plagal In modern music, noting a cadence in which the chord of the tonic is preceded by that of the subdominant. See cadence.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Plagal plā′gal in Gregorian music, denoting a mode or melody in which the final is in the middle of the compass instead of at the bottom—opp. to Authentic.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
F., from Gr. pla`gios sidewise, slanting
Chambers's Twentieth Century Dictionary
Gr. plagios, sidewise—plagos, a side.