Yes, Lena, I know what you mean. The words are negative, but the melody is so seductive and feels so good to sing, that we keep singng it.

I have been experimenting with singing the devil's words in a hard voice and the "parsley, sage, rosemary and thyme" in a softer, faraway voice. It's kind of fun.

Some people reading these posts may not be aware of this, so let me mention that the "parsley, sage..." bit is a charm, magic words naming supposedly powerful herbs. It's purpose was to protect the singer, because the singer is in danger for singing about a devil. So when I sing them, I am trying to sound like a faraway angel interposing good magic.