The most signal triumphs of the Romantic portrayal of memory are not those which recall past happiness, but remembrances of those moments when future… - Charles Rosen

By the late eighteenth century, there is a sad and permanent decline in the quality of music written for young performers or beginners: one has only to compare Bach's Album for Anna Magdalena Bach and the Two-Part Inventions with anything that came later. No composer of importance between Bach and Schumann turned his hand to writing for children, and Schumann's essays came after his years of greatest inspiration for piano writing had gone. (Mozart is the odd exception, but then he was, in fact, almost incapable of writing really easy pieces: he no doubt believed that his Sonata in D Major, K.576, was easy, perhaps because all the hard passages in the first movement were in simple two-part counterpoint, one voice in each hand, but he was wrong.)

The etude is a Romantic idea. It appeared in the early nineteenth century as a new genre: a short piece in which the musical interest is derived almost entirely from a single technical problem. A mechanical difficulty directly produces the music, its charm, and its pathos. Beauty and technique are united, but the creative stimulus is the hand, with its arrangement of muscles and tendons, its idiosyncratic shape.

Liszt has never needed revival; his music has always been an important part of the concert repertoire. Nevertheless, he has appeared to need rehabilitation.