On a rainy day, Blue wants to do something musical. She and Steve discover that the raindrops sound like music, and Blue decides she would like to do a musical activity. They play Blue's Clues to figure out what Blue wants to do, which involves music and playing with clues like pot lids, a drum, and a marching toy, all related to music and rhythm.
Additionally, in some episodes or versions, Blue also enjoys playing outside in rain boots and jumping in puddles, celebrating the rainy day with activities like splashing outside. But primarily, the musical theme is a key focus for what Blue wants to do on a rainy day in the main highlighted episode.
