Listen to III. Allegro piacevole online. III. Allegro piacevole is an Unknown language song and is sung by Werner Riessmann and Dieter Goldmann. III. Allegro piacevole, from the album Sleeping In The Back: Classical Music for Long Car Journeys, was released in the year 2015. The duration of the song is 4:15. Download Unknown songs online from JioSaavn.