O be joyful Slootmaekers, Martin Iubilate et cantate Slootmaekers, Martin Vreugde Nees, Vic Ons derde land Nees, Vic 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