I found the German lyrics at lieder-archiv.de. They're quite different from the English words you have, but I think it's supposed to be the same song. The melody is the same, anyhow.

I visited the Steiner/Waldorf world headquarters in Basel last June, and I was sorely tempted to buy some songbooks, but they were very expensive.

Here are the German lyrics:

Trara, das tönt wie Jagdgesang

Trara, das tönt wie Jagdgesang,
wie wilder und fröhlicher Hörnerklang,
wie Jagdgesang, wie Hörnerklang:
Trara, trara, trara.

A canon with four parts. Source: Das große Liederbuch, Diogenes Verlag, Zürich, 1975, page 119