Oh it could get messy quickly. One of the playgrounds I like to hang out with my son at is right under the most common approach to a small local airport. It's a

Oh it could get messy quickly. One of the playgrounds I like to hang out with my son at is right under the most common approach to a small local airport. It's also walled off by seven-story apartment buildings on two sides. The noise from approaching planes is dampened by the building between me and them, but bounce off the opposite building. So it always sounds like they're coming from the opposite direction, until they clear that angle, when they sound correct again, until obscured by the other building...