The Quartet of the Russian Folk Instruments Exprompt is the band of the Karelian State Philharmonic.
The ensemble was created by Aleksei and Olga Kleshchenko in 1995. The repertoire based on Russian traditional music in original arrangements and on Django Reinhardt, Astor Piazzolla, Alfred Schnittke, Vincent Fiorino music.
The Exprompt quartet is a laureate of the Citta di Castelfidardo International Competition, a Bronze Medal winner at the Astor Piazzolla Competition in Italy. In 2008, Exprompt won the prestigious Eiserner Eversteiner European prize in world music at the Plauener Folkherbst competition in Germany. It was the only Russian ensemble at that time that been awarded this prize for its entire existence.
The Exprompt quartet took part in many international festivals, including Folkbaltica and the largest festival of folk and world music in Europe TFF Rudolstadt.
In 2018, the Quartet of the Russian Folk Instruments Exprompt became the finalist of the unique project Quartet 4x4 of the TV channel Russia Kultura, where 16 best quartets from all over the country took part.
Currently, the quartet includes Aleksey Kleshchenko (balalaika), Olga Kleshchenko (domra), laureate of international competitions Nikolai Istomin (button accordion), Evgenii Tarasenko (balalaika-double bass).