Galin-Paris-Chevé system
The Galin-Paris-Chevé system is a method of reading music, based on the ideas of Jean-Jacques Rousseau, founded by Pierre Galin (1786–1821) and developed by Aimé Paris (1798–1866), his sister Nanine Paris (1800–1868), and her husband Émile-Joseph-Maurice Chevé (1804–1864).