Furlong also worked with Nilsson on other tracks, demos which never made it to released material. He provided flying saucer sounds for an unreleased version of "The Flying Saucer Song."
A little anecdote: One night during playback Harry was whistling some ideas during the fade of a song (don't remember which one). I, being the "synthesizer guy," asked hopefully, "Are you thinking about a synthesizer part there?"
"No," he said, smiling. "I was thinking about whistling."
-- Shaun Furlong (1997)