it would have been sung over the 'bicycle rider' music-box fade out - its got the same meter as the 'bicycle rider' lyrics
I tried it. I think this is what you mean. Please excuse the questionable vocals
Listen to it here: https://dl.dropboxusercontent.com/u/52684612/East%20or%20west%20%282%29.wav
That's exactly how I hear it in my head too!