The ongoing New Liszt Edition from EMB nears completion of the first phase - piano solo works, with the release of Volume 4 of the Supplement series. Of this series of twenty-four études planned by Liszt only twelve were actually written, but the contemporary printed editions of the completed pieces (in the hope of a continuation) appeared with the series title '24 grandes études'. By publishing these 12 concert studies it makes the earlier and technically more difficult version of the Transcendental Studies available for the first time since 1911 for study by performers and those engaged in music research. Contrary to the 1911 edition among the volumes of the first complete Liszt edition, NLE will publish also the text variants of some studies, an album leaf in F sharp major in facsimile and in transcription considered as the 13th study planned by Liszt for the series, and the earlier versions of so-called Mazeppa and Ab irato studies. In the volume will be published the puzzling album leaf, the so-called 'Prélude omnitonique' and some similar album leaves, too. Vingt-quatre (Douze) grandes études 1-12, Mazeppa (1st version), Morceau de salon - Étude de perfectionnement de la Méthode des méthodes pour le piano, Appendix - Vingt-quatre grandes études No. 6, 10 - Album leaves, Appendix - Preludio (F sharp major) Draft and album leaf, Mazeppa - Album leaf, Mazeppa - Flyleaf, Études d'exécution transcendante No. 11 Harmonies du soir - Album leaf, Essai sur l'indifférence (Fragment), Prélude omnitonique R-, SW 727, SH 166e, NG2- and other similar album leaves.