The above is a recording of a concert at Duke University in the Nelson Music Room on January 26th, 2014. The performers are Professor Edna Andrews (12-string guitar, soprano) and Professor Irina Guliakova (alto).
The repertoire includes a variety of music forms from Russian folk songs, different types of Russian art songs (Russian романс - классический, городской), and Russian ballads from the late 20th century.
Professors Andrews and Guliakova perform frequently in St. Petersburg, Russia. MP3 versions of the songs can be found here.