Beljon studied lute and guitar at the conservatories of Utrecht and The Hague with Hans Verzijl and Toyohiko Satoh, respectively. He also studied composition with Carlos Michàns and Daan Manneke. Many of Beljon’s compositions were written for ensembles and soloists such as the Nieuw Ensemble, the Nederlands Kamerkoor, Orkest De Volharding, the Amsterdam Quintet, pianist Ralph van Raat, and Duo Subiaco. Beljon’s works were performed in Holland as well as in Germany, Austria, the United States, Russia, and Australia.