While The Zombies hit big with sharp '60s guitar pop, further listening reveals inventive melodies and lush production. A gentle piano ballad with intertwined harmonies, 1978's demo of “When My Boat Comes In” is a thing of delicate beauty. Contrast that with the natty beat pop of “I Can't Make My Mind Up” or singer Colin Blunstone's solo outing “Caroline Goodbye,” where his airy vocals dance weightlessly with gliding strings.