Albert De Klerk has been played on NTS in shows including Open Hand Real Flames , featured first on 23 January 2019. Songs played include In Dulci Jubilo.

Albert de Klerk (Haarlem, 4 oktober 1917 - Amsterdam, 1 december 1998) was a Dutch composer and organist. De Klerk studied at the Amsterdam Conservatory with Anthon van der Horst, Cornelis de Wolf and Hendrik Andriessen. During his entire lifetime he was the organist of the Sint Josephkerk in Haarlem. After the second World War De Klerk founded and conducted the Concertkoor Haarlem (until 1991). From 1965 to 1985 he was the principal organ teacher at the Amsterdam Conservatory.