The Zombies' "Soulville"

This morning I listened to the last disc of the Zombies' Zombie Heaven, subtitled "Live on the BBC," and I noticed a small thing about their version of "Soulville."  During a section about halfway through the song, the backing vocals consist of the phrase "Come on down to Soulville."  The "down" there is sung with two syllables; it's a G down to an E.  That descent sort of represents the whole "Come on down to Soulville" phrase itself.