Professor at the Royal Conservatory of Brussels and at the Queen Elisabeth Music Chapel.
On age of sixteen : third prize in the Queen Elisabeth Competition for piano in 1964. Studied at the Queen Elisabeth Music Chapel. He has been a soloist with numerous orchestras, including the Symphony Orchestra of Saint Petersburg, the Royal Philharmonic Orchestra in London, the National Orchestra of Belgium, the Orchester de la Radio-Télévision Luxembourgeoise, the Residentie Orkest in The Hague, I Fiamminghi and the Franz Liszt Orchestra in Budapest.
Frequently performed in chamber music formation with musicians such as José Van Dam, Augustin Dumay, Miriam Fried, Silvia Marcovici, Gérard Caussé, Michaela Martin, Walter Boeykens, Frans Helmerson, the quartet Ysaÿe, the quartet Melos and the quartet Enesco.
His recordings are numerous.
Vanden Eynden was often a jury member in international competitions, primarily on the jury of the International Queen Elisabeth Competition. He was also artistic advisor for some festivals such as in Stavelot.
He built a solid career as an international soloist. At the same time he was a professor at the Royal Music Academy in Brussels and at the Queen Elisabeth Music Chapel. He was also artistic director of the Center européen de maîtrise pianistique Eduardo Del Pueyo.