Here is a demonstration of using both the Guitar Hero World Tour Drums for Wii and the Rock Band Drums for Wii to create a full MIDI Drumset:
Camille, the programmer of OSCulator, got his program working with the Velocity-sensitive Guitar Hero drums. Download OSCulator here:
I created a Logic environment with a switch that is triggered by the MIDI note that the Rock Band pedal is sending via JunXion. It transforms the closed high hat to the open one when the pedal is released. I’m also using another transformer to amplify the velocity of the MIDI drums by 30, because the GH drums are pretty quiet otherwise.
Download the Osculator file, the JunXion file, and the Logic file here: gh_rb_setup.zip
Props to Camille for his help, Maeve for me stealing back a loop from her song, and Samantha and Fred Tesche for Dark Matter.