She has appeared at festivals such as Concentus Moraviae, the Kuks Music Summer, Hluboká and Vltavou Festival, Janáček in Hukvaldy, La Schubertiade, Moravian Autumn, Murter Classics, Olten Classique and Via Francigena. Several times she co-worked with State Brno Philharmonic and conductors such as Caspar Richter and Petr Altrichter. Besides her classical concert repertoire, Petra Besa is intensively devoted to chamber music rehearsals. She has co-worked with artist such as Bohuslav Matoušek, Igor Karsko, and Jiří Pospíchal (violin), Alexander Besa (viola), Jan Škrdlík and Vojtěch Novák (cello), members of Camerata Bern, Ensemble Kaleidoscope, and others. Presently, Petra Besa lives in Lucern and works at Music Academy in the City of Basel.
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The artistic range of Jan Škrdlík begins from authentic period-faithful styles to traditional Czech romantic and neo-romanticism expressive school. Reviews from different parts of Europe and America agreed about character of his play: Designated of very clear and confident creation of tone even in the most difficult parts of compositions, he excel in sound picturesqueness and tone plasticity, genteel tone and quality technique preparedness. Among instruments with which Jan Škrdlík played on, belongs violoncello of Adam Emanuel Homolka made in 1842, which in 2007 become known in press, after someone stole it from artists atelier and based on report in television, instrument was returned by the thief after 2 days.