Yes, there is a `sidechain` function designed specifically for this. I wanted to keep this tutorial simple so I skipped a lot of mixing techniques or were left as an exercise to the reader, but I will try to cover those as well in future tutorials. Sign up to get notified for when they arrive!
For now you can see how it's done here[0] on line 139. I pretty much use it on every other track I've made as well.
