 He came from Brassac-les-Mines (Auvergne, France), and wrote some of the most famous pieces of French Tango music, with international notice, and recognised by his Argentine peers.He helped to promote the Salon Tango in the 1950s.He invented the Fratelli Crosio Bandoneon (Pablo Caliero single note chromatic key system), in Paris in the 1950s.