 The work consists entirely of rapid arpeggios and harmonic modulations based on A-flat major.Robert Schumann praised this work in a dissertation on the Études; calling it "a poem rather than a study", he coined for it the alternate name "Aeolian Harp".It is also sometimes known as "The Shepherd Boy," following an unsupported tale by Kleczyński that Chopin advised a pupil to picture a shepherd boy taking refuge in a grotto to avoid a storm playing the melody on his flute.