Maisy and all her friends love making music and, tonight, they're going to have a concert. Time to practise everyone! With all their musical instruments - the piano, the triangle, drums and the double bass - they get a jam going, chinka-ching, rat-a-tat-tat, doo-ba-be-doo, tum-te-tum! What a show it will be! Brimming over with witty pull-the-tabs showing Eddy tinging his triangle, Charlie working the double bass and Maisy feeling the rhythm on the drums!