Listen to Bahn frei!, Op. 45 online. Bahn frei!, Op. 45 is an Instrumental language song and is sung by Pavel Kogan and USSR Ministry of Culture Symphony Orchestra. Bahn frei!, Op. 45, from the album Vienna Ball: Strauss Family Waltzes, Polkas & Marches, was released in the year 1998. The duration of the song is 2:11. Download Instrumental songs online from JioSaavn.