O be joyful Slootmaekers, Martin Iubilate et cantate Slootmaekers, Martin Winter Verfaillie, Michiel Vlaams Magnificat Dubois, Chris Sigi and Julia, de musical (vocal part) De Baets, Thomas Sigi and Julia, dé musical De Baets, Thomas Sigi and Julia, de musical (instr. Parts) De Baets, Thomas