Ars Iuvenum chamber ensemble operating at the Podlasie Opera and Philharmonic celebrated its 30 years of activity last year. Since the beginning its artistic director is Grzegorz Puchalski, clarinetist, who decided for the member list not to be fixed, but changing with the repertoire. That is why the ensemble is able to present works of many different composers, many periods, and in various arrangements of the instruments. Chamber works of the Vienna classics, Mozart and Beethoven, filled with subtlety and serenity, offer the listener real pleasure and high-minded entertainment. Chamber music enambles composers to express their intimate experiences or rampant emotions, and at the same time from the performers it requires the highest prowess.