LITTLE KNOWN FACTS ABOUT STUDY MUSIC.

4 time signature, is actually a holdover of the symbol, not a letter C being an abbreviation for "common time", as commonly considered). When many of such improvements are ascribed to Vitry, and considerably present while in the Ars Nova treatise, it had been a up to date—and personal acquaintance—of de Vitry, named Johannes de Muris (or Jehan