Listen to Rachmaninoff: Piano Concerto No. 2 in C minor, Op. 18: 2. Adagio sostenuto online. Rachmaninoff: Piano Concerto No. 2 in C minor, Op. 18: 2. Adagio sostenuto is an Unknown language song and is sung by Vladimir Ashkenazy, London Symphony Orchestra and André Previn. Rachmaninoff: Piano Concerto No. 2 in C minor, Op. 18: 2. Adagio sostenuto, from the album Classical Clips Vol. 2, was released in the year 2022. The duration of the song is 2:55. Download Unknown songs online from JioSaavn.