I also referenced the studio versions (Rod's solo version on Red House and the version with Colin on Out of the Shadows) and discovered some differences between them. First, in the Red House version, the section with "Walk away / Sad to say / Love's grown thin..." is present only musically, not lyrically. Apparently, the words were a later development. Second, the two versions are in different keys, so the "Walk away" in the Out of the Shadows version is sung to the pitches F G A.