He was a member of the Trondlin Pianoforte Trio with whom he performed at many national and international festivals. The many CD’s they have recorded have received worldwide acclaim in the press.
Karel Steylaerts also teaches cello at the Conservatoire Royal de Bruxelles.
In 2006, together with Shirly Laub (violin) and Tony Nys (viola), Karel founded the TrioFenix to bring the seldom-played repertoire for string trios to a wider public through concert performances.