Similiar to Book 1 of Ligeti's Etudes Book 2 requires the same level of technical ability to perform some of the composers most demanding pieces. With their shifting rhythms irregular intervals and polymetric nature they have become a standard in the Piano repertoire.
Ligeti, György : Etueden 9 - Volume 2
György Ligeti: Etudes pour Piano - deuxième livre: Piano: Instrumental Work
Ligeti Gyorgy - Etudes Pour Piano Deuxieme Livre - Piano
Etudes