Butterfy Ball by Roger Glover and Guests

I can remember this wee video from 1973 well, my dad got me up out of my bed on a Sunday evening to watch it. It had won some sort of award for being the best animated film that year. I spent years looking round record shops and the likes trying to get a copy of the song and eventually put an ad in the yellow paper. I bought a copy on tape from a girl in Greenock, who played it over the phone to make sure it was the right song. I remember she was wary of my motive for wanting to buy the tape and kept asking if I was going to use the song in an advert on the telly. Of course I denied all knowlege,but the song did appear on the telly not too long after on some kids drink advert.