ORF Vorarlberg

I'm really into fairy tale radio plays by Willi Tom Stassar, produced back in the 1950s, broadcasted by ORF Landesstudio Tirol for several decades up until the late 80s (that's a guess) and since the early 2000s available on compact disc via the ORF shop (e.g. here) . So I was looking through all the tapes at home and found this gem:

"Der König von Balibubu" is a radio play for children by Friedrich Feld. Broadcasted by ORF Landesstudio Vorarlberg. I was not able to find any other mention of this particular play on the web so far.