It's time for choir practice in the Biggleton community hall, and Holly the Music Teacher is helping the singers warm up. Momo the Athlete is also warming up. She's preparing to race the Biggleton bus. Frankie the Business Woman is busier than ever today because she is looking after her sister's baby. Frankie has an app on her phone that gives her helpful tips about babysitting. The baby won't fall asleep, so the app suggests singing a lullaby. Maybe the choir can help.