First, open up SYNTHI-JS and take a look around. SYNTHI-JS can look daunting at first, but creating patches with it is actually quite straightforward. The patchboard functions as a routing mechanism: device outputs on the left side of the patchboard get routed to device inputs on the top side of the patchboard. Let's make our first patch! Click on the button at B1 at the patchboard to connect the