40 Melodic and Progressive Etudes, Op. 31 for Cello, Book 1
Like Most other virtuosos, Lee published many pieces designed to exploit a virtuoso's powers upon his instrument--variations, fantasies upon operatic themes, divertissements, etc. More important are his numerous compositions intended for purposes of instruction, many of which were primarily written for the use of the Conservatoire at Paris, including a number of duos. His "Method" for the 'cello is one of the most widely used of all such instruction books.