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 Royal Philharmonic Orchestra, Sir Alexander Gibson and Alexander Ardakov. Rachmaninoff: Piano Concerto No. 2 in C Minor, Op. 18: I. Moderato, from the album Big Russian Music Box, was released in the year 2018. The duration of the song is 10:32. Download English songs online from JioSaavn.