RaspiDrums is now a completed project, and I'm working on eXaDrums instead.
eXaDrums comes as a shared library that is a fork of RaspiDrums. In addition to the shared library, an executable provides a nice GUI, which can be used with the Raspberry Pi 7" official touchscreen. Pretty exciting isn't it?
In short, eXaDrums is an electronic drum kit, and its drum module has a touchscreen!
Check out the new project: https://hackaday.io/project/9350-exadrums.