The three artists combine their considerable talents to bring three musical worlds together at a concert in the Roman Amphitheatre in the German city of Xanten.

Bulat Okudzhava's concert was the first of its kind during the upheaval period in the Gorbachev era of glasnost and perestroika. Much of what Bulat Okudzhava says and sings in this concert sheds light on the political developments that ultimately…