After the bankruptcy of his art shop, he opened a Latin school on the Singel.
Worldwide renowned stages, where Marek Kalbus has been heard recently, are Teatro Massimo (Palermo), Teatro Carlo Felice (Genoa), Teatro Dal Verme (Milano), Teatro Lirico di Cagliari, Oper Bonn, Teatro Municipal de Santiago de Chile, Konzerthaus Berlin and Berliner Philharmonie, International Art Centre De Singel (Antwerp), Beethoven Hall Bonn, the International Al Bustan Music Festival Beirut and Czech Philharmonic.
This issue, which was compared to the case of Willie Horton, was cited as another reason why Singel lost the campaign.
The world premiere took place on April 4, 1995, at the Singel in Antwerp with the Oxalys Chamber Orchestra (without conductor), featuring Henk Lauwers (baritone).