Son of musicians, (his mother Thera was a famous composer in the realm of Electronic Vintage Music), David de Marez Oyens started lessons in hobo, piano, ending up with double bass and bass guitar. He studied jazz and composition at the Hilversum Conservatorium (which later fused with Amsterdam), where he is working a a teacher since 1985. With Rafael Reina and Jos Zwaanenburg, David de Marez Oyens is teaching at the programme ‘Contemporary Music through Non-Western Techniques’. David is also giving clinics and seminars in the Netherlands and abroad. As an educating bassplayer David toured in Belgium, Spain, France, Germany, Scandinavia, former Yugoslavia, Gambia, Canada and USA, during which he shared the stage with artist like Joe Lovano, Philipe Catherine, Hein van der Geyn, Serge Lazarevitch, Jim McNeely,  Billy Hart, Radio Symphonie Orkest, Radio Kamer Orkest, Metropole Orkest, Nippy Noya, Wim Overgaauw, Michel Petrucciani, Boi Akih, Rob Madna, Michiel Borstlap, Bart van Lier, Denise Jannah, Batida, Nueva Manteca, Estrella Acosta, Luizão Paiva, Leonardo Amuedo, Marc Bischoff, Eef Albers, Thijs van Leer, Friedrich Gulda, Erik Vaarzon Morel, Oene van Geel, Didier Lockwood, Randy Crawford, Mike Mainieri, Edo Righini, Onno Witte, Mike del Ferro, Nabil Khemir and Tineke Postma. Since 2007, he joined Stormvogel in progjazz projects like PitchWhiteStorm, Bohemian Groove Orchestra, Global Alternative Energy Attack and Alter Ego Jazzbarock Consort, also gigging with Stormvogel at the yearly Festival de Muzen with guest soloists like Rob van den Broeck, Tommy Smith and Niladri Kumar.