Inspired by the uploads of the illustrious duo Engel & Bert I tried to make a recording of a piece for four hands too. My respect to you, Engelbert! It's very difficult and it took me many hours to record this piece... But anyways, here's the result!
It's a Flute Concert by Mozart, arranged for organ four hands by the late Jacques van Oortmerssen, recorded on the gorgeous sample set of the Riepp organ in Ottobeuren.
The score is for sale at https://www.oortmerssen.com/shop/1306833810