Robert Schumann’s only piano concerto was not always a concerto: in 1841 the composer produced a Fantaisie in a-minor for piano and orchestra, which later evolved into the first movement of his Piano Concerto, which was completed 4 years later in 1845. ThePiano Concerto in a-minor by Robert Schumann, our Evening Masterwork tonight at 7 on Classical WSMR 89.1 and 103.9.