A goat moaning in pain does add something to the song. Give me an exorcist Stevie or give me nothing at all.
Can you imagine Chris's inner thoughts during this? "What is this bloody mess? I though Bob talking mid-sound was bad. Now this bloody mess. Girl needs an exorcism"
On another note I do not think that is Christine banging the organ. I watched them perform Green Manalishi on The Midnight Special in 1974. It was the other guy on the organ. Maybe the additional keyboardist was not there for the studio live concert but he is there on this performance and does a bang up job. But maybe both of them playing is giving me that vibe that I love.
https://www.youtube.com/watch?v=o5rd2fEuWls