Most ice cream trucks in Canada and the United States use music boxes made by a single mom-and-pop company in Minneapolis. If there’s a particular ice cream truck song that annoys you all summer, you have the Nichols Electronics Company to blame.
(You could always ask the your local driver if they’re able to switch it up — if they have one of the Omni models, they could change it to one of thirty-one other songs.)
Historically, ice cream truck music boxes were a sonic callback to late 19th-century ice cream parlors and soda fountains, which had coin-operated music boxes before phonographs were invented and jukeboxes could become a thing.