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 by Franz Liszt, a set of piano pieces, went through three versions: "Étude en douze exercices" (1826), "Douze grandes études" (1837), and "Douze études d'exécution trancendante" (1851). The 1851 version is the most frequently performed due to its challenging right-hand double-note passages and wide left-hand intervals.