Some of the pieces suggested here such as the Carnaval, Davidsbundlertanze, Symphonic Etudes, Toccata, and even the Viennese Carnaval, are amongst the hardest in the romantic repertoire. Some more moderate introductions, in addition to the Waldszenen, would be the Papillons, Novellete #1, some of the pieces from the Fantasiestucke Op. 12, the Arabesque, Blumenstucke, or perhaps the Abegg Variations.