The Origins of Western Notation - Revised and Translated by Neil Moran. With a Report on The Reception of the Universale Neumenkunde, 1970-2010 - B
Modern music notation developed out of the so-called square notation and this out of the Latin neumes. The question of where these neumes came from has long been the subject of scholarly debate. This study aroused a great deal of dispute, recent studies have revealed that relevance of Neumenkunde remains essentially unchallenged after 40 years.