Peter Dejans studied at the Royal Conservatory of Brussels
and the Lemmens Institute in Leuven, under Erik Van Nevel. He also took master classes under Frieder Bernius. He has served as Director of the Orpheus Institute (Ghent) since 1996, which organises postgraduate studies as well as a doctoral programme for promising and talented musicians.
During his studies in Law at the University of Leuven (KU Leuven), Peter Dejans conducted the Leuven University Choir (LUK) and in 1989 he founded the vocal ensemble Musa Horti. From 1995 until 1997 he conducted the Cappella Antwerpen and in 1998 he co-founded the KU Leuven sta choir, Capella Academica, of which he was the first conductor. From 1999 until 2009, he conducted the Cappella Concinite. Peter Dejans is regularly invited as guest conductor of the Flemish Radio Choir (VRK).