On 20th October 2018 dr. Sándor Balatoni held a presentation and a masterclass in Vrsac, Serbia for cantors and church musicians as part of the Interreg IPA-CBC cross-border religious music establishment. The topic of the presentation was ‘Liturgic improvisations on catholic chants’ and after the presentation a masterclass took place at the great church of Vrsac where the participants could try and learn different improvisation techniques and interpretation.