Listen to The Mounted Messenger - Finale (From "The Threepenny Opera") online. The Mounted Messenger - Finale (From "The Threepenny Opera") is an English language song and is sung by William Duell. The Mounted Messenger - Finale (From "The Threepenny Opera"), from the album Greatest Musicals Double Feature - The Threepenny Opera & Chu Chin Chow (Original Film Soundtracks), was released in the year 2014. The duration of the song is 3:05. Download English songs online from JioSaavn.