Per uploader Brock2097:
Frank Zappa and Prazsky Vyber, "Improvizace V A Dur S Frankem Zappou," performed live on June 24, 1991 at the "ADIEU C.A." concert in Prague, Czechoslovakia, to celebrate the collapse of Soviet rule in the country. Released on Prazsky Vyber albums "Adieu C.A." and "Komplet."