 The fifth finger may also have been used on earlier, more lightly strung modern harps.Madame de Genlis, for example, in her "Méthode", published in Paris in the early 19th century, promotes the use of all fingers, while Roslyn Rensch suggests that Mlle de Guînes, the harpist for whom Mozart wrote his Concerto for Flute and Harp, might occasionally have used all five fingers when playing the harp.In more modern music, the little finger is used very rarely, for example in simultaneous cluster chords, such as in Daniel Kessner's "Sonatina".