Guy Raz and Dennis hear strange and terrible noises coming from Mindy’s gingerbread mansion. Concerned, they investigate and discover that Mindy is having a chaotic baseball stadium organ lesson with the eccentric Professor Cadenza. The gang, including Gramma G-Force and Thomas Fingerling, attempts to help Mindy improve her playing. Guy Raz explains the importance of practice, using a scientific study about how repeated practice helps mice remember scents to show that practice can also help Mindy master the organ. Does practice really make permanent? It’s the Who, What, When, Where, How, and Wow in the World of repetition and the brain!

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