The Chest Voice is Complete Glottal Closure. I think “Chest Voice” is preferred over “Chest Register” by many pedagogues because the term does not involve any specific notes or set of notes. If Garcia defined any distinction between these terms I have not found it. I have found that he seems to use these different modes of expression according to his intent. When he discusses the functioning of the larynx he generally uses “Chest Voice”. That is how I want to use it as well.