Yes, Liz, "Rubber Ducky" is a great song. But the guy who wrote it is a sadist. Why? Because it's a kid's song. That means that every kid in the world whose mom plays a little bit of guitar is going to walk up to her someday while she's strumming one of the five songs she knows and say, "Mommy, could you play 'Rubber Ducky'?" And ya know what? Mom's not gonna be able to play it. Why? Because the chords are pretty darned complicated. Oh, they'd be no trouble for most of the guitar geeks that hang out here. They're a pretty straight ahead swing progression. But poor Mom that only knows ten chords is not gonna be able to play "Rubber Duckie". Then the kid's gonna get all upset and start crying and Mom's going to feel like a total failure at parenting. And all because the guy that wrote the song couldn't have just made it a simple G-C-D'er.