Samuel Goss made the world a little sweeter in 1899:

My invention relates to bicycles, and has for its object to provide a combined bicycle and musical instrument whereby the rider when so disposed may treat himself and others in his immediate neighborhood to a musical accompaniment as he rides along.

Essentially it’s a giant music box mounted on the frame and driven by the pedals. Presumably a tandem bike could play in harmony — perhaps “A Bicycle Built for Two,” which had come out just five years earlier.