"The Lights Go Down"

Last night I went through my files because I need to combine parts I have physically written down with parts I have typed in various Google Documents (in doing so, I discovered that since last October I've known at least a bit of each song on ELO II, although I don't think I've recorded them all).  In any case, I realized something just by reading the title of "The Lights Go Down."  That line in the song descends (it's sung to the phrase C C B A), so there's a musical element to represent the "go[ing] down."