In the course of the first movement Schumann varies this theme in many ways. He first offers it in the A minor key of the movement, then we hear it again in major, and we can also hear small snatches of the tune in a very slow, A-flat section. The orchestra and especially the clarinet is often used against the piano in this movement: while the solo instrument is dedicated to the main theme of the concerto, the strings begin to intone a Florestan-like, syncopated side thought (bar 41), which becomes more and more dominant, until a variation of the Eusebian main theme recurs quietly but urgently.