As with the other works in the Études but one, Feux follets went through three versions, the first being Étude en douze exercices from 1826, the second being Douze grandes études from 1837, and third Douze études d'exécution trancendante, an 1851 revision of the 1837 set. It is this last version, from 1851, that is most often performed. Its rapid double-note passages in the right hand accompanied by wide broken intervals in the left are notoriously difficult to play.
The Études, a collection of piano pieces by Franz Liszt, went through three iterations: the first being "Étude en douze exercices" from 1826, the second being "Douze grandes études" from 1837, and the third being "Douze études d'exécution trancendante," a revised version of the 1837 set published in 1851. The latter is most frequently performed. Its challenging right-hand double-note passages and wide left-hand intervals are notoriously difficult to play.