[ https://www.mmdigest.com/Attachments/20/11/15/201115_201801_Book.jpg
 

Hi Kurt, The music book pictured is meant to be played on a 105-key
semi-electronic Decap Herentals dance organ. The tune title seen is
"Den Uyl is in den olie," a popular Dutch carnival tune from the 1970s.

Thijs Haenen
Eindhoven, The Netherlands