"Come Back (I Don't Want to Go on without You)"

According to Denny Laine's Instagram post, yester-day was the anniversary of the release of the first Moody Blues album.  I listened to it and found a couple things to note.  I still have some research to do on one song, but here's a feature I noticed in the first verse of "Come Back (I Don't Want to Go on without You)."  The lead and backing vocals both sing the first two lines ("I don't want to / Go on without you"), but the backing vocals and the instruments drop out for part of the next line ("It's so bad to be alone").  Since this leaves just a single voice, that "be[ing] alone" is illustrated musically.