Hi Fran,

I've started my own thread in Mudcat called "Which BBC Schools Broadcast around 1966". In this thread, somebody (from a link provided) pointed out that the missing word is "Lortl" (which is an anagram of "Troll"). I had half-remembered the word "Mortal" but knew that must be wrong. Using this information, I found that the song is called the "Lortl Song" and is included in "Time and Tune - BBC Radio for Schools - Spring Term 1966". Just found and bought it on Amazon!

The accompanying description on Amazon is: "A music series offering children opportunities to listen to music and sing along, with creative suggestions and games to develop music appreciation and skills. This pamphlet has a witches and wizards theme and contains six songs - Susy Little Susy, The Riddle, The Little Pig, Lortl Song, The Weather Witch and Missa Ram Goat".

When I receive the pamphlet I'll put all the words in the aforementioned thread.