In Dulci Jubilo is attributed to a Dominican Abbot of the fourteenth century, Heinrick Suso. The fable suggests that one night the Abbot heard the angels singing it as he was stabling his donkey Sigismund.
In 1985 John Rutter used the fable to write a narration to accompany the music he wrote (auto play, sorry) based on Brother Heinrick's Christmas.
In the 1990's Jurgen Gothe, then proprietor of the best radio show in the world: Disc Drive*, made it an Advent tradition in our house. I'm sure many others in Cascadia did the same. When Canada's Tories became the Reee-foorm party, they set their sights on the destruction of the CBC Stereo. As they succeeded in dumbing down everything, I found a copy of Three Fables by John Rutter to add to our collection to continue the tradition.
Some when in this process the idea came to make a mobile illustrative of the tale
Enter the villain of the piece:
Maybe next year we will get Brother Heinrick back in place.
*CBC Stereo, Vancouver B.C. Canada