I have made a first version of a raspberry pi based sound engine. The OLED and keys are working and I found a python-based menu system that allows navigation, configuration and execution of various commands.
I think it would work great with software synthesizers as:
· ZynAddSubFX
· Sunvox
· Fluidsynth
· Samplerbox
· etc
The UI can either use 4 or 6 keys for navigation and there are 4 or 6 keys left for selection of presents.
If anyone wants to help with development and integration, let me know.