In this video, we'll use the Nylon Conductive Tape items on the case of the toolbox, three alligator clips, and the Circuit Playground Express Capacitive Touch Sensor pins A1, A2, and A4 to build our toolbox trumpet valves. Although building this is part of the first exercise in the Building a Toolbox Trumpet chapter, and you'll use it first to play the first three notes in the scale, I'll finish by showing how these can be used to play a full Middle-C scale on our Toolbox Trumpet.