This project is featured in chapter 3 of Coding and the Arts. This is less a project of it’s own and more a strategy for collaboration when programming music.
Introducing Structure
The EarSketch curriculum includes a lesson about the A-B-A song structure which is the perfect place to introduce this kind of collaboration. In the language of that lesson, each student in a pair will work on either the ‘A’ or ‘B’ section, which will eventually be combined into one single program.