From volume 2 of the work.

1712157A Dictionary of Music and Musicians — MotetusWilliam Smyth Rockstro


MOTETUS. A name given, in the infancy of Polyphonic Music, to a middle part, written for the Voice which was afterwards called Medius, or Altus. The term was constantly used, in this sense, in the 13th and 14th centuries, and probably, still earlier.

[ W. S. R. ]