 Shortly afterward, in 1991, Antunes founded his own new music group, the Tippett Ensemble, which continues to give concerts throughout Europe, always featuring mainly contemporary music.Following his debut with the Neues Rheinisches Kammerorchester at the Kölner Philharmonie, he was appointed its Chief Conductor, a post he held from 1994 until 1998.During roughly the same period (1994–1997) he was also Chief Conductor of the Antwerp-based ensemble Champ d'Action.