Listen to Rachmaninoff: Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato online. Rachmaninoff: Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato is an English language song and is sung by Clifford Curzon, London Philharmonic Orchestra and Sir Adrian Boult. Rachmaninoff: Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato, from the album Rachmaninov, was released in the year 2020. The duration of the song is 10:41. Download English songs online from JioSaavn.