Over the years guest conductors have included Raffi Armenian, Kees Bakels, Michel Corboz, Victor Feldbrill, Serge Garant, Monica Huggett, Milton Katims, Gary Kulesha, Sir Ernest MacMillan, Ettore Mazzoleni, Geoffrey Moull, Harry Newstone, Yannick Nézet-Séguin, Jaap Schroeder, Georg Tintner, Owen Underhill, Heinz Unger, and Jon Washburn.