 His engagements have included appearances at the Flanders Festival, the Cologne MusikTriennale, the Kurt-Weill-Festival in Dessau and the Living Music Festival in Dublin.Antunes has appeared with such artists as the Cappella Istropolitana Bratislava, the WDR Radio Symphony Orchestra, the Gürzenich Orchestra, the Irish Chamber Orchestra, the Latvian National Symphony Orchestra in Riga, the Radio Sinfonieorchester NDR Hannover, the Ulster Orchestra (Belfast) and the Deutsche Staatsphilharmonie Rheinland-Pfalz.Between 2002 and 2007, Antunes was the Artistic Director and Chief Conductor of The National Chamber Choir of Ireland.