 At a later stage, Liszt experimented with "forbidden" things such as parallel 5ths in the "Csárdás macabre" and atonality in the "Bagatelle sans tonalité" ("Bagatelle without Tonality").Pieces like the "2nd Mephisto-Waltz" are unconventional because of their numerous repetitions of short motives.Also showing experimental characteristics are the "Via crucis" of 1878, as well as "Unstern!