Listen to Der fidele Bauer, Act II "Der Professor": Herr Professor online. Der fidele Bauer, Act II "Der Professor": Herr Professor is an English language song and is sung by Christian Kotsis. Der fidele Bauer, Act II "Der Professor": Herr Professor, from the album Fall: Der fidele Bauer, was released in the year 2011. The duration of the song is 5:33. Download English songs online from JioSaavn.