NOT KNOWN FACTUAL STATEMENTS ABOUT AMBIENT MUSIC

four time signature, is actually a holdover of this image, not a letter C as an abbreviation for "frequent time", as popularly considered). While several of these improvements are ascribed to Vitry, and rather existing inside the Ars Nova treatise, it had been a present-day—and personal acquaintance—of de Vitry, named Johannes de Muris (or Jeha