Wim Mertens has been played over 30 times on NTS, first on 25 June 2017. Wim Mertens's music has been featured on 34 episodes.

Wim Mertens (b. Neerpelt, Belgium, May 14, 1953) is a Belgian composer, countertenor vocalist, pianist, guitarist, and musicologist.

Mertens studied social and political science at the University of Leuven (graduating in 1975) and musicology at Ghent University; he also studied music theory and piano at the Royal Conservatories of Ghent and Brussels.

In 1978, he became a producer at the then BRT (Belgian Radio and Television). For Radio 2 (Radio Brabant) he produced concerts by Philip Glass, Steve Reich, Terry Riley, Meredith Monk,…