According to the website given below, Koen Dieltiens was born in Lier and studied music pedagogy and organ at the Lemmens Institute in Leuven, Belgium, as well as recorder. Due to the influence B. Deerenberg, P. Van Nevel and J. Van Immerseel, he specialised in Early Music, with a particular interest in the recorder and the repertoire of the Renaissance and Baroque periods.
During his studies at the Conservatorium in Antwerp, where he earned his Master's Degree in recorder and chamber music, as well as prizes in music history and harmony, he was the first prize-winner in the international recorder competition in St. Hubert. As a member of the Antwerp Recorder Consort
he enjoys a busy concert schedule and also appears frequently with ensembles led by Rene Jacobs, Sigiswald Kuijken, Philippe Herreweghe and Petrus Dombrecht. Koen Dieltiens teaches at the Lemmens Institute in Leuven and is organist at the St. Walburga church in Bruges.