Claude Debussy's 12 �tudes were composed in 1915, in memory of Frederic Chopin. He admits that these are extremely difficult to play, and describes them as "a warning to pianists not to take up the musical profession unless they have remarkable hands." Includes: �tude 1 (5 fingers, "after Monsieur Czerny") * �tude 2 (thirds) * �tude 3 (fourths) * �tude 4 (sixths) * �tude 5 (octaves) * �tude 6 (eight fingers) * �tude 7 (chromatic degrees) * �tude 8 (ornaments) * �tude 9 (repeated notes) * �tude 10 (opposing sonorities) * �tude 11 (composite arpeggios) * �tude 12 (chords).