Exercices De Moyenne Force Op. 50 is a set of fourteen exercises for intermediate pianists by Isidor Philipp. This volume will help the players to gain in flexibility and dexterity. It focuses on some special aspects: the independence of each hand the use of five fingers the scales and arpeggios the octaves and the double notes. Isidor Philipp (1863-1958) was a French pianist and composer who was also a renowned pedagogue. He tried to carry on Chopin’s methods and philosophy of education.