Listen to Piano Concerto No. 24 in C Minor, K. 491: III. Allegretto (Cadenza by Fischer) online. Piano Concerto No. 24 in C Minor, K. 491: III. Allegretto (Cadenza by Fischer) is an Instrumental language song and is sung by Edwin Fischer/London Philharmonic Orchestra/Lawrance Collingwood. Piano Concerto No. 24 in C Minor, K. 491: III. Allegretto (Cadenza by Fischer), from the album Icon: Edwin Fischer, was released in the year 2010. The duration of the song is 8:15. Download Instrumental songs online from JioSaavn.