abstract:A neume (; spelled neum in, for instance, the Solesmes publications in English)Dom Gregory Sunol, Textbook of Gregorian Chant According to the Solesmes Method 2003 ISBN 0-7661-7241-4, ISBN 978-0-7661-7241-8Chants of the ChurchLiber Usualis is the basic element of Western and Eastern systems of musical notation prior to the invention of five-line staff notation. The word is a Middle English corruption of the Greek word for breath ( ).