Penelope K, by the way - Wind

Penelope K runs the Information Station, a place which contains all the answers to any question a child might have. To help her find the answers, Penelope is joined by her sock puppet, Squirm; Hank and Frank, two wisecracking fish; Trewey, the shadow rabbit, and music is provided by the Rubber Band. Wind has something to do with music. Flying birds know when it's there. Wind makes sailing boats go. When Penelope cools down by turning on an electric fan she notices streamers dancing about in the breeze and hears wind chimes playing music. Even though wind is invisible we know it's there because what it does can be seen, heard like music, and felt like flying birds feel it under their wings.