I saw this piece as the opening work at a funky little church-basement art film festival a good twenty-five years ago. When it was over the entire audience stood up and cheered. Then they made the projectionist show it two more times! As with all good Fleischer cartoons the transformations (this guy invented morphing) were breathtaking, the music was fantastic, and the synchrony between the two was literally stunning. it's head-and-shoulders above 99% of what's out there in animation. I've been looking for a video copy of this ever since.