Special music
I went to a festival downtown with some friends last weekend. We wandered around looking at art and eating yummy fair food and finally settled down near the river to rest our feet. And then the most bizarre music started playing. It sounded like an ice cream truck jingle that was being played on completely the wrong instrument. We were finally able to track it down to a set of steam pipes on a riverboat (an not just any riverboat. A proper Mark Twain, six story riverboat with the most enormous smoke stacks). Here's a youtube video of the boat we saw (different song though. We got a mix of The Beachboys and American folk tunes).