Ella Polansky is as hip as a kindergarten teacher can be. No apple or alphabet sweaters for her. Ever. And when she plays a gig with her accordion, she sometimes steps to the microphone in red boots and tight jeans to add some percussive beatboxing. But Ella loses her cool when someone pushes her beloved accordion off a balcony and kills the unpopular director of a local musical theater production. Who is the logical suspect? Ella, of course,...