First published in 1830, Czerny's impressive work can be considered one of the first romantic concertos ever written. Czerny employs thematic transformation throughout, as the opening thematic idea in hushed strings builds and takes on various guises as the work progresses. Following the extended orchestral opening, the initial piano entry states the theme mezzo-forte. The contrasting dolce second subject leads to some gladiatorial writing for piano, and a grandiose statement in the orchestra before a beautifully tranquil texture with clarinet leads into the development. Here the piano states the thematic idea boldly, with diminished seventh harmonies adding to the tension, answered by a pensive oboe. After a strong orchestral return the piano solo transforms the theme again, now in the major key, the added seventh lending a yearning quality.