Listen to Boris Godunov, Act IV Scene 1: "Trrr! Zhelezny kolpak" online. Boris Godunov, Act IV Scene 1: "Trrr! Zhelezny kolpak" is a Russian language song and is sung by Aleksei Maslennikov, Bolshoi Theatre Children's Choir, Mark Ermler and Bolshoi Theatre Orchestra. Boris Godunov, Act IV Scene 1: "Trrr! Zhelezny kolpak", from the album Mussorgsky: Boris Godunov, was released in the year 1985. The duration of the song is 2:24. Download Russian songs online from JioSaavn.