The 1st concert of the Kolpakov Duo (Russian-Gypsy 7-strings) at the Glinka Museum in Moscow in 1997. Dedicated to the Russian guitar virtuoso Mikhail Vyssotskiy from the 19th century.
Thank you for uploading. My god this is such an amazing performance and I can't believe there is so few views on this video.... Vengerka starts at 17:05