The Wolga Virtuosen Quartet was one of the groups at the Eurofestival Zupfmusik in Bruchsal that got a lot of applause for their performance of typical Russian folklore. It was a lot of fun to watch the players play and act. The group was composed of prim-domra, alto-domra, bass-balalaika and the accordion instrument bayan.
Ther is one video that gives some impressions of a typical performance by this group that plays well known classical works by Russian and European composers and virtuous arrangements of Russian folk music. In their arrangements they use all the possibilities of the typical russian instruments domra, balalaika, bayan and others.
Wolga Virtuosen Quartett
The Wolga Virtuosen do also play in other groups, you can find all information about composition, instruments and music on their homepage (with a nice intro too):
A second video shows differrent groups, ballet dancers, the audience talking about some typical Russian food that was served during the beak, with some information in German and shows some very special miniature accordeon instruments: