 This is analogous to the Guidonian practice of giving each degree of the hexachord a solfège name, and is mostly used in Germanic countries, Commonwealth Countries, and the United States.One particularly important variant of movable do, but differing in some respects from the system described below, was invented in the nineteenth century by Sarah Ann Glover, and is known as tonic sol-fa.In Italy, in 1972, Roberto Goitre wrote the famous method "Cantar leggendo", which has come to be used for choruses and for music for young children.