O be joyful Slootmaekers, Martin Iubilate et cantate Slootmaekers, Martin Clash (vocal part) De Baets, Thomas Clash (score) De Baets, Thomas Clash (instrumental parts) De Baets, Thomas Oktober Bikkembergs, Kurt Zigeunerlieder (mixed) Budai, Erika Zigeunerlieder (equal) Budai, Erika