Liapunov's Twelve Transcendental Etudes, although derivative in nature, have significant musical and technical value, and are sometimes strengthened by the inspiration of other composers' works. Neither highly creative nor original, LIaounov drew on forms and techniques supplied by the great pianist-composers of Western Europe, such as Schwann, Chopin, and Liszt. Not to be overlooked is the influence of his teacher and friend, Balakirev.