Seen in San Francisco during this past weekend’s street closin’ party Sunday Streets, an upright piano bike. Not only did this guy play while peddling, but he was also a damn good musician. He said it took several years to perfect the bike which, while you might not be able to tell from the photo, was nicely crafted. Not sure about the steering but it seemed to be by pushing the keyboard itself. This may have influenced the choice of a ragtimey repertoire. Also kinda funny to have a musical performance affected by potholes.
It seems that this is an old vaudeville stunt.