I agree. We can look to start organizing a place where people can start submitting ideas for important concepts, lesson or unit plans, sequencing of lessons and examples etc as well as an agreed upon format for how these lessons/tutorials should be presented in. We can also decide if this is something we want to format for a Kadenze class specifically or make it more open ended as a crowd sourced class for Sonic Pi made by members of the Sonic Pi community for members of the Sonic Pi community (and then maybe tweak it later on to fit Kadenze).
There was another thread where @kniknoo brought up the possibilities of creating intermediate tutorials which Sam seemed very open to. That might be a good starting off point.