Uitgebreide Psalmvoorspelen over Psalm 68 & Psalm 116

Among the old chorale bundles my grandfather left me, I found some very nice bundles with organ music by Dutch composers, published around 1950 and 1960. This bundle contains four extended Psalm Preludes (in Dutch: Vier uitgebreide psalmvoorspelen) by Wim van Beek, published in 1957. Wim van Beek is probably best known for being the organist of the famous Schnitger organ of the Martinikerk, Groningen from 1956 till 2016.
However, I didn't record two of these psalm preludes on the model of this Schnitger organ, but on the Bätz organ of the Domkerk Utrecht, which sounds wonderful too.